| Step | 
						Hyp | 
						Ref | 
						Expression | 
					
						
							| 1 | 
							
								
							 | 
							fucofvalg.p | 
							⊢ ( 𝜑  →  𝑃  ∈  𝑈 )  | 
						
						
							| 2 | 
							
								
							 | 
							fucofvalg.c | 
							⊢ ( 𝜑  →  ( 1st  ‘ 𝑃 )  =  𝐶 )  | 
						
						
							| 3 | 
							
								
							 | 
							fucofvalg.d | 
							⊢ ( 𝜑  →  ( 2nd  ‘ 𝑃 )  =  𝐷 )  | 
						
						
							| 4 | 
							
								
							 | 
							fucofvalg.e | 
							⊢ ( 𝜑  →  𝐸  ∈  𝑉 )  | 
						
						
							| 5 | 
							
								
							 | 
							fucofvalg.o | 
							⊢ ( 𝜑  →  ( 𝑃  ∘F  𝐸 )  =   ⚬  )  | 
						
						
							| 6 | 
							
								
							 | 
							fucofvalg.w | 
							⊢ ( 𝜑  →  𝑊  =  ( ( 𝐷  Func  𝐸 )  ×  ( 𝐶  Func  𝐷 ) ) )  | 
						
						
							| 7 | 
							
								
							 | 
							df-fuco | 
							⊢  ∘F   =  ( 𝑝  ∈  V ,  𝑒  ∈  V  ↦  ⦋ ( 1st  ‘ 𝑝 )  /  𝑐 ⦌ ⦋ ( 2nd  ‘ 𝑝 )  /  𝑑 ⦌ ⦋ ( ( 𝑑  Func  𝑒 )  ×  ( 𝑐  Func  𝑑 ) )  /  𝑤 ⦌ 〈 (  ∘func   ↾  𝑤 ) ,  ( 𝑢  ∈  𝑤 ,  𝑣  ∈  𝑤  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉 )  | 
						
						
							| 8 | 
							
								7
							 | 
							a1i | 
							⊢ ( 𝜑  →   ∘F   =  ( 𝑝  ∈  V ,  𝑒  ∈  V  ↦  ⦋ ( 1st  ‘ 𝑝 )  /  𝑐 ⦌ ⦋ ( 2nd  ‘ 𝑝 )  /  𝑑 ⦌ ⦋ ( ( 𝑑  Func  𝑒 )  ×  ( 𝑐  Func  𝑑 ) )  /  𝑤 ⦌ 〈 (  ∘func   ↾  𝑤 ) ,  ( 𝑢  ∈  𝑤 ,  𝑣  ∈  𝑤  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉 ) )  | 
						
						
							| 9 | 
							
								
							 | 
							fvexd | 
							⊢ ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  →  ( 1st  ‘ 𝑝 )  ∈  V )  | 
						
						
							| 10 | 
							
								
							 | 
							simprl | 
							⊢ ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  →  𝑝  =  𝑃 )  | 
						
						
							| 11 | 
							
								10
							 | 
							fveq2d | 
							⊢ ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  →  ( 1st  ‘ 𝑝 )  =  ( 1st  ‘ 𝑃 ) )  | 
						
						
							| 12 | 
							
								2
							 | 
							adantr | 
							⊢ ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  →  ( 1st  ‘ 𝑃 )  =  𝐶 )  | 
						
						
							| 13 | 
							
								11 12
							 | 
							eqtrd | 
							⊢ ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  →  ( 1st  ‘ 𝑝 )  =  𝐶 )  | 
						
						
							| 14 | 
							
								
							 | 
							fvexd | 
							⊢ ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  →  ( 2nd  ‘ 𝑝 )  ∈  V )  | 
						
						
							| 15 | 
							
								
							 | 
							simplrl | 
							⊢ ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  →  𝑝  =  𝑃 )  | 
						
						
							| 16 | 
							
								15
							 | 
							fveq2d | 
							⊢ ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  →  ( 2nd  ‘ 𝑝 )  =  ( 2nd  ‘ 𝑃 ) )  | 
						
						
							| 17 | 
							
								3
							 | 
							ad2antrr | 
							⊢ ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  →  ( 2nd  ‘ 𝑃 )  =  𝐷 )  | 
						
						
							| 18 | 
							
								16 17
							 | 
							eqtrd | 
							⊢ ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  →  ( 2nd  ‘ 𝑝 )  =  𝐷 )  | 
						
						
							| 19 | 
							
								
							 | 
							simpr | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  𝑑  =  𝐷 )  | 
						
						
							| 20 | 
							
								
							 | 
							simpllr | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  | 
						
						
							| 21 | 
							
								20
							 | 
							simprd | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  𝑒  =  𝐸 )  | 
						
						
							| 22 | 
							
								19 21
							 | 
							oveq12d | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  ( 𝑑  Func  𝑒 )  =  ( 𝐷  Func  𝐸 ) )  | 
						
						
							| 23 | 
							
								
							 | 
							simplr | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  𝑐  =  𝐶 )  | 
						
						
							| 24 | 
							
								23 19
							 | 
							oveq12d | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  ( 𝑐  Func  𝑑 )  =  ( 𝐶  Func  𝐷 ) )  | 
						
						
							| 25 | 
							
								22 24
							 | 
							xpeq12d | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  ( ( 𝑑  Func  𝑒 )  ×  ( 𝑐  Func  𝑑 ) )  =  ( ( 𝐷  Func  𝐸 )  ×  ( 𝐶  Func  𝐷 ) ) )  | 
						
						
							| 26 | 
							
								
							 | 
							ovexd | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  ( 𝐷  Func  𝐸 )  ∈  V )  | 
						
						
							| 27 | 
							
								
							 | 
							ovexd | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  ( 𝐶  Func  𝐷 )  ∈  V )  | 
						
						
							| 28 | 
							
								26 27
							 | 
							xpexd | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  ( ( 𝐷  Func  𝐸 )  ×  ( 𝐶  Func  𝐷 ) )  ∈  V )  | 
						
						
							| 29 | 
							
								25 28
							 | 
							eqeltrd | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  ( ( 𝑑  Func  𝑒 )  ×  ( 𝑐  Func  𝑑 ) )  ∈  V )  | 
						
						
							| 30 | 
							
								6
							 | 
							ad3antrrr | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  𝑊  =  ( ( 𝐷  Func  𝐸 )  ×  ( 𝐶  Func  𝐷 ) ) )  | 
						
						
							| 31 | 
							
								25 30
							 | 
							eqtr4d | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  ( ( 𝑑  Func  𝑒 )  ×  ( 𝑐  Func  𝑑 ) )  =  𝑊 )  | 
						
						
							| 32 | 
							
								
							 | 
							simpr | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  𝑤  =  𝑊 )  | 
						
						
							| 33 | 
							
								32
							 | 
							reseq2d | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  (  ∘func   ↾  𝑤 )  =  (  ∘func   ↾  𝑊 ) )  | 
						
						
							| 34 | 
							
								
							 | 
							simplr | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  𝑑  =  𝐷 )  | 
						
						
							| 35 | 
							
								21
							 | 
							adantr | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  𝑒  =  𝐸 )  | 
						
						
							| 36 | 
							
								34 35
							 | 
							oveq12d | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ( 𝑑  Nat  𝑒 )  =  ( 𝐷  Nat  𝐸 ) )  | 
						
						
							| 37 | 
							
								36
							 | 
							oveqd | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) )  =  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) )  | 
						
						
							| 38 | 
							
								
							 | 
							simpllr | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  𝑐  =  𝐶 )  | 
						
						
							| 39 | 
							
								38 34
							 | 
							oveq12d | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ( 𝑐  Nat  𝑑 )  =  ( 𝐶  Nat  𝐷 ) )  | 
						
						
							| 40 | 
							
								39
							 | 
							oveqd | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  =  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) ) )  | 
						
						
							| 41 | 
							
								38
							 | 
							fveq2d | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ( Base ‘ 𝑐 )  =  ( Base ‘ 𝐶 ) )  | 
						
						
							| 42 | 
							
								35
							 | 
							fveq2d | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ( comp ‘ 𝑒 )  =  ( comp ‘ 𝐸 ) )  | 
						
						
							| 43 | 
							
								42
							 | 
							oveqd | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) )  =  ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) )  | 
						
						
							| 44 | 
							
								43
							 | 
							oveqd | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) )  =  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) )  | 
						
						
							| 45 | 
							
								41 44
							 | 
							mpteq12dv | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) )  =  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) )  | 
						
						
							| 46 | 
							
								37 40 45
							 | 
							mpoeq123dv | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) )  =  ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) )  | 
						
						
							| 47 | 
							
								46
							 | 
							csbeq2dv | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) )  =  ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) )  | 
						
						
							| 48 | 
							
								47
							 | 
							csbeq2dv | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) )  =  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) )  | 
						
						
							| 49 | 
							
								48
							 | 
							csbeq2dv | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) )  =  ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) )  | 
						
						
							| 50 | 
							
								49
							 | 
							csbeq2dv | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) )  =  ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) )  | 
						
						
							| 51 | 
							
								50
							 | 
							csbeq2dv | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) )  =  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) )  | 
						
						
							| 52 | 
							
								32 32 51
							 | 
							mpoeq123dv | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  ( 𝑢  ∈  𝑤 ,  𝑣  ∈  𝑤  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) )  =  ( 𝑢  ∈  𝑊 ,  𝑣  ∈  𝑊  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) )  | 
						
						
							| 53 | 
							
								33 52
							 | 
							opeq12d | 
							⊢ ( ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  ∧  𝑤  =  𝑊 )  →  〈 (  ∘func   ↾  𝑤 ) ,  ( 𝑢  ∈  𝑤 ,  𝑣  ∈  𝑤  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉  =  〈 (  ∘func   ↾  𝑊 ) ,  ( 𝑢  ∈  𝑊 ,  𝑣  ∈  𝑊  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉 )  | 
						
						
							| 54 | 
							
								29 31 53
							 | 
							csbied2 | 
							⊢ ( ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  ∧  𝑑  =  𝐷 )  →  ⦋ ( ( 𝑑  Func  𝑒 )  ×  ( 𝑐  Func  𝑑 ) )  /  𝑤 ⦌ 〈 (  ∘func   ↾  𝑤 ) ,  ( 𝑢  ∈  𝑤 ,  𝑣  ∈  𝑤  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉  =  〈 (  ∘func   ↾  𝑊 ) ,  ( 𝑢  ∈  𝑊 ,  𝑣  ∈  𝑊  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉 )  | 
						
						
							| 55 | 
							
								14 18 54
							 | 
							csbied2 | 
							⊢ ( ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  ∧  𝑐  =  𝐶 )  →  ⦋ ( 2nd  ‘ 𝑝 )  /  𝑑 ⦌ ⦋ ( ( 𝑑  Func  𝑒 )  ×  ( 𝑐  Func  𝑑 ) )  /  𝑤 ⦌ 〈 (  ∘func   ↾  𝑤 ) ,  ( 𝑢  ∈  𝑤 ,  𝑣  ∈  𝑤  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉  =  〈 (  ∘func   ↾  𝑊 ) ,  ( 𝑢  ∈  𝑊 ,  𝑣  ∈  𝑊  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉 )  | 
						
						
							| 56 | 
							
								9 13 55
							 | 
							csbied2 | 
							⊢ ( ( 𝜑  ∧  ( 𝑝  =  𝑃  ∧  𝑒  =  𝐸 ) )  →  ⦋ ( 1st  ‘ 𝑝 )  /  𝑐 ⦌ ⦋ ( 2nd  ‘ 𝑝 )  /  𝑑 ⦌ ⦋ ( ( 𝑑  Func  𝑒 )  ×  ( 𝑐  Func  𝑑 ) )  /  𝑤 ⦌ 〈 (  ∘func   ↾  𝑤 ) ,  ( 𝑢  ∈  𝑤 ,  𝑣  ∈  𝑤  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝑑  Nat  𝑒 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝑐  Nat  𝑑 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝑐 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝑒 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉  =  〈 (  ∘func   ↾  𝑊 ) ,  ( 𝑢  ∈  𝑊 ,  𝑣  ∈  𝑊  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉 )  | 
						
						
							| 57 | 
							
								1
							 | 
							elexd | 
							⊢ ( 𝜑  →  𝑃  ∈  V )  | 
						
						
							| 58 | 
							
								4
							 | 
							elexd | 
							⊢ ( 𝜑  →  𝐸  ∈  V )  | 
						
						
							| 59 | 
							
								
							 | 
							opex | 
							⊢ 〈 (  ∘func   ↾  𝑊 ) ,  ( 𝑢  ∈  𝑊 ,  𝑣  ∈  𝑊  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉  ∈  V  | 
						
						
							| 60 | 
							
								59
							 | 
							a1i | 
							⊢ ( 𝜑  →  〈 (  ∘func   ↾  𝑊 ) ,  ( 𝑢  ∈  𝑊 ,  𝑣  ∈  𝑊  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉  ∈  V )  | 
						
						
							| 61 | 
							
								8 56 57 58 60
							 | 
							ovmpod | 
							⊢ ( 𝜑  →  ( 𝑃  ∘F  𝐸 )  =  〈 (  ∘func   ↾  𝑊 ) ,  ( 𝑢  ∈  𝑊 ,  𝑣  ∈  𝑊  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉 )  | 
						
						
							| 62 | 
							
								5 61
							 | 
							eqtr3d | 
							⊢ ( 𝜑  →   ⚬   =  〈 (  ∘func   ↾  𝑊 ) ,  ( 𝑢  ∈  𝑊 ,  𝑣  ∈  𝑊  ↦  ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑢 ) )  /  𝑓 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑘 ⦌ ⦋ ( 2nd  ‘ ( 1st  ‘ 𝑢 ) )  /  𝑙 ⦌ ⦋ ( 1st  ‘ ( 2nd  ‘ 𝑣 ) )  /  𝑚 ⦌ ⦋ ( 1st  ‘ ( 1st  ‘ 𝑣 ) )  /  𝑟 ⦌ ( 𝑏  ∈  ( ( 1st  ‘ 𝑢 ) ( 𝐷  Nat  𝐸 ) ( 1st  ‘ 𝑣 ) ) ,  𝑎  ∈  ( ( 2nd  ‘ 𝑢 ) ( 𝐶  Nat  𝐷 ) ( 2nd  ‘ 𝑣 ) )  ↦  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑏 ‘ ( 𝑚 ‘ 𝑥 ) ) ( 〈 ( 𝑘 ‘ ( 𝑓 ‘ 𝑥 ) ) ,  ( 𝑘 ‘ ( 𝑚 ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( 𝑟 ‘ ( 𝑚 ‘ 𝑥 ) ) ) ( ( ( 𝑓 ‘ 𝑥 ) 𝑙 ( 𝑚 ‘ 𝑥 ) ) ‘ ( 𝑎 ‘ 𝑥 ) ) ) ) ) ) 〉 )  |