| Step | 
						Hyp | 
						Ref | 
						Expression | 
					
						
							| 1 | 
							
								
							 | 
							fucoco.r | 
							⊢ ( 𝜑  →  𝑅  ∈  ( 𝐹 ( 𝐷  Nat  𝐸 ) 𝐾 ) )  | 
						
						
							| 2 | 
							
								
							 | 
							fucoco.s | 
							⊢ ( 𝜑  →  𝑆  ∈  ( 𝐺 ( 𝐶  Nat  𝐷 ) 𝐿 ) )  | 
						
						
							| 3 | 
							
								
							 | 
							fucoco.u | 
							⊢ ( 𝜑  →  𝑈  ∈  ( 𝐾 ( 𝐷  Nat  𝐸 ) 𝑀 ) )  | 
						
						
							| 4 | 
							
								
							 | 
							fucoco.v | 
							⊢ ( 𝜑  →  𝑉  ∈  ( 𝐿 ( 𝐶  Nat  𝐷 ) 𝑁 ) )  | 
						
						
							| 5 | 
							
								
							 | 
							fucoco.o | 
							⊢ ( 𝜑  →  ( 〈 𝐶 ,  𝐷 〉  ∘F  𝐸 )  =  〈 𝑂 ,  𝑃 〉 )  | 
						
						
							| 6 | 
							
								
							 | 
							fucoco.x | 
							⊢ ( 𝜑  →  𝑋  =  〈 𝐹 ,  𝐺 〉 )  | 
						
						
							| 7 | 
							
								
							 | 
							fucoco.y | 
							⊢ ( 𝜑  →  𝑌  =  〈 𝐾 ,  𝐿 〉 )  | 
						
						
							| 8 | 
							
								
							 | 
							fucoco.z | 
							⊢ ( 𝜑  →  𝑍  =  〈 𝑀 ,  𝑁 〉 )  | 
						
						
							| 9 | 
							
								
							 | 
							fucoco.a | 
							⊢ ( 𝜑  →  𝐴  =  〈 𝑅 ,  𝑆 〉 )  | 
						
						
							| 10 | 
							
								
							 | 
							fucoco.b | 
							⊢ ( 𝜑  →  𝐵  =  〈 𝑈 ,  𝑉 〉 )  | 
						
						
							| 11 | 
							
								
							 | 
							fucocolem2.t | 
							⊢ 𝑇  =  ( ( 𝐷  FuncCat  𝐸 )  ×c  ( 𝐶  FuncCat  𝐷 ) )  | 
						
						
							| 12 | 
							
								
							 | 
							fucocolem2.ot | 
							⊢  ·   =  ( comp ‘ 𝑇 )  | 
						
						
							| 13 | 
							
								
							 | 
							fucocolem2.od | 
							⊢  ∗   =  ( comp ‘ 𝐷 )  | 
						
						
							| 14 | 
							
								6 7
							 | 
							opeq12d | 
							⊢ ( 𝜑  →  〈 𝑋 ,  𝑌 〉  =  〈 〈 𝐹 ,  𝐺 〉 ,  〈 𝐾 ,  𝐿 〉 〉 )  | 
						
						
							| 15 | 
							
								14 8
							 | 
							oveq12d | 
							⊢ ( 𝜑  →  ( 〈 𝑋 ,  𝑌 〉  ·  𝑍 )  =  ( 〈 〈 𝐹 ,  𝐺 〉 ,  〈 𝐾 ,  𝐿 〉 〉  ·  〈 𝑀 ,  𝑁 〉 ) )  | 
						
						
							| 16 | 
							
								15 10 9
							 | 
							oveq123d | 
							⊢ ( 𝜑  →  ( 𝐵 ( 〈 𝑋 ,  𝑌 〉  ·  𝑍 ) 𝐴 )  =  ( 〈 𝑈 ,  𝑉 〉 ( 〈 〈 𝐹 ,  𝐺 〉 ,  〈 𝐾 ,  𝐿 〉 〉  ·  〈 𝑀 ,  𝑁 〉 ) 〈 𝑅 ,  𝑆 〉 ) )  | 
						
						
							| 17 | 
							
								
							 | 
							eqid | 
							⊢ ( Base ‘ 𝐷 )  =  ( Base ‘ 𝐷 )  | 
						
						
							| 18 | 
							
								
							 | 
							eqid | 
							⊢ ( Base ‘ 𝐶 )  =  ( Base ‘ 𝐶 )  | 
						
						
							| 19 | 
							
								
							 | 
							eqid | 
							⊢ ( comp ‘ 𝐸 )  =  ( comp ‘ 𝐸 )  | 
						
						
							| 20 | 
							
								11 12 1 2 3 4 17 18 19 13
							 | 
							xpcfucco3 | 
							⊢ ( 𝜑  →  ( 〈 𝑈 ,  𝑉 〉 ( 〈 〈 𝐹 ,  𝐺 〉 ,  〈 𝐾 ,  𝐿 〉 〉  ·  〈 𝑀 ,  𝑁 〉 ) 〈 𝑅 ,  𝑆 〉 )  =  〈 ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ,  ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) 〉 )  | 
						
						
							| 21 | 
							
								16 20
							 | 
							eqtrd | 
							⊢ ( 𝜑  →  ( 𝐵 ( 〈 𝑋 ,  𝑌 〉  ·  𝑍 ) 𝐴 )  =  〈 ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ,  ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) 〉 )  | 
						
						
							| 22 | 
							
								21
							 | 
							fveq2d | 
							⊢ ( 𝜑  →  ( ( 𝑋 𝑃 𝑍 ) ‘ ( 𝐵 ( 〈 𝑋 ,  𝑌 〉  ·  𝑍 ) 𝐴 ) )  =  ( ( 𝑋 𝑃 𝑍 ) ‘ 〈 ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ,  ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) 〉 ) )  | 
						
						
							| 23 | 
							
								
							 | 
							df-ov | 
							⊢ ( ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ( 𝑋 𝑃 𝑍 ) ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) )  =  ( ( 𝑋 𝑃 𝑍 ) ‘ 〈 ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ,  ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) 〉 )  | 
						
						
							| 24 | 
							
								22 23
							 | 
							eqtr4di | 
							⊢ ( 𝜑  →  ( ( 𝑋 𝑃 𝑍 ) ‘ ( 𝐵 ( 〈 𝑋 ,  𝑌 〉  ·  𝑍 ) 𝐴 ) )  =  ( ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ( 𝑋 𝑃 𝑍 ) ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) ) )  | 
						
						
							| 25 | 
							
								11 12 1 2 3 4
							 | 
							xpcfuccocl | 
							⊢ ( 𝜑  →  ( 〈 𝑈 ,  𝑉 〉 ( 〈 〈 𝐹 ,  𝐺 〉 ,  〈 𝐾 ,  𝐿 〉 〉  ·  〈 𝑀 ,  𝑁 〉 ) 〈 𝑅 ,  𝑆 〉 )  ∈  ( ( 𝐹 ( 𝐷  Nat  𝐸 ) 𝑀 )  ×  ( 𝐺 ( 𝐶  Nat  𝐷 ) 𝑁 ) ) )  | 
						
						
							| 26 | 
							
								20 25
							 | 
							eqeltrrd | 
							⊢ ( 𝜑  →  〈 ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ,  ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) 〉  ∈  ( ( 𝐹 ( 𝐷  Nat  𝐸 ) 𝑀 )  ×  ( 𝐺 ( 𝐶  Nat  𝐷 ) 𝑁 ) ) )  | 
						
						
							| 27 | 
							
								
							 | 
							opelxp2 | 
							⊢ ( 〈 ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ,  ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) 〉  ∈  ( ( 𝐹 ( 𝐷  Nat  𝐸 ) 𝑀 )  ×  ( 𝐺 ( 𝐶  Nat  𝐷 ) 𝑁 ) )  →  ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) )  ∈  ( 𝐺 ( 𝐶  Nat  𝐷 ) 𝑁 ) )  | 
						
						
							| 28 | 
							
								26 27
							 | 
							syl | 
							⊢ ( 𝜑  →  ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) )  ∈  ( 𝐺 ( 𝐶  Nat  𝐷 ) 𝑁 ) )  | 
						
						
							| 29 | 
							
								
							 | 
							opelxp1 | 
							⊢ ( 〈 ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ,  ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) 〉  ∈  ( ( 𝐹 ( 𝐷  Nat  𝐸 ) 𝑀 )  ×  ( 𝐺 ( 𝐶  Nat  𝐷 ) 𝑁 ) )  →  ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) )  ∈  ( 𝐹 ( 𝐷  Nat  𝐸 ) 𝑀 ) )  | 
						
						
							| 30 | 
							
								26 29
							 | 
							syl | 
							⊢ ( 𝜑  →  ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) )  ∈  ( 𝐹 ( 𝐷  Nat  𝐸 ) 𝑀 ) )  | 
						
						
							| 31 | 
							
								5 6 8 28 30
							 | 
							fuco22a | 
							⊢ ( 𝜑  →  ( ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ( 𝑋 𝑃 𝑍 ) ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) )  =  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( ( ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ( 2nd  ‘ 𝐹 ) ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ‘ ( ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) ‘ 𝑥 ) ) ) ) )  | 
						
						
							| 32 | 
							
								
							 | 
							relfunc | 
							⊢ Rel  ( 𝐶  Func  𝐷 )  | 
						
						
							| 33 | 
							
								
							 | 
							eqid | 
							⊢ ( 𝐶  Nat  𝐷 )  =  ( 𝐶  Nat  𝐷 )  | 
						
						
							| 34 | 
							
								33
							 | 
							natrcl | 
							⊢ ( 𝑉  ∈  ( 𝐿 ( 𝐶  Nat  𝐷 ) 𝑁 )  →  ( 𝐿  ∈  ( 𝐶  Func  𝐷 )  ∧  𝑁  ∈  ( 𝐶  Func  𝐷 ) ) )  | 
						
						
							| 35 | 
							
								4 34
							 | 
							syl | 
							⊢ ( 𝜑  →  ( 𝐿  ∈  ( 𝐶  Func  𝐷 )  ∧  𝑁  ∈  ( 𝐶  Func  𝐷 ) ) )  | 
						
						
							| 36 | 
							
								35
							 | 
							simprd | 
							⊢ ( 𝜑  →  𝑁  ∈  ( 𝐶  Func  𝐷 ) )  | 
						
						
							| 37 | 
							
								
							 | 
							1st2ndbr | 
							⊢ ( ( Rel  ( 𝐶  Func  𝐷 )  ∧  𝑁  ∈  ( 𝐶  Func  𝐷 ) )  →  ( 1st  ‘ 𝑁 ) ( 𝐶  Func  𝐷 ) ( 2nd  ‘ 𝑁 ) )  | 
						
						
							| 38 | 
							
								32 36 37
							 | 
							sylancr | 
							⊢ ( 𝜑  →  ( 1st  ‘ 𝑁 ) ( 𝐶  Func  𝐷 ) ( 2nd  ‘ 𝑁 ) )  | 
						
						
							| 39 | 
							
								18 17 38
							 | 
							funcf1 | 
							⊢ ( 𝜑  →  ( 1st  ‘ 𝑁 ) : ( Base ‘ 𝐶 ) ⟶ ( Base ‘ 𝐷 ) )  | 
						
						
							| 40 | 
							
								39
							 | 
							ffvelcdmda | 
							⊢ ( ( 𝜑  ∧  𝑥  ∈  ( Base ‘ 𝐶 ) )  →  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 )  ∈  ( Base ‘ 𝐷 ) )  | 
						
						
							| 41 | 
							
								
							 | 
							fveq2 | 
							⊢ ( 𝑝  =  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 )  →  ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 )  =  ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) )  | 
						
						
							| 42 | 
							
								
							 | 
							fveq2 | 
							⊢ ( 𝑝  =  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 )  →  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 )  =  ( ( 1st  ‘ 𝐾 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) )  | 
						
						
							| 43 | 
							
								41 42
							 | 
							opeq12d | 
							⊢ ( 𝑝  =  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 )  →  〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉  =  〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐾 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 )  | 
						
						
							| 44 | 
							
								
							 | 
							fveq2 | 
							⊢ ( 𝑝  =  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 )  →  ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 )  =  ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) )  | 
						
						
							| 45 | 
							
								43 44
							 | 
							oveq12d | 
							⊢ ( 𝑝  =  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 )  →  ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) )  =  ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐾 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) )  | 
						
						
							| 46 | 
							
								
							 | 
							fveq2 | 
							⊢ ( 𝑝  =  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 )  →  ( 𝑈 ‘ 𝑝 )  =  ( 𝑈 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) )  | 
						
						
							| 47 | 
							
								
							 | 
							fveq2 | 
							⊢ ( 𝑝  =  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 )  →  ( 𝑅 ‘ 𝑝 )  =  ( 𝑅 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) )  | 
						
						
							| 48 | 
							
								45 46 47
							 | 
							oveq123d | 
							⊢ ( 𝑝  =  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 )  →  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) )  =  ( ( 𝑈 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐾 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( 𝑅 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) )  | 
						
						
							| 49 | 
							
								
							 | 
							eqid | 
							⊢ ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) )  =  ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) )  | 
						
						
							| 50 | 
							
								
							 | 
							ovex | 
							⊢ ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) )  ∈  V  | 
						
						
							| 51 | 
							
								48 49 50
							 | 
							fvmpt3i | 
							⊢ ( ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 )  ∈  ( Base ‘ 𝐷 )  →  ( ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) )  =  ( ( 𝑈 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐾 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( 𝑅 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) )  | 
						
						
							| 52 | 
							
								40 51
							 | 
							syl | 
							⊢ ( ( 𝜑  ∧  𝑥  ∈  ( Base ‘ 𝐶 ) )  →  ( ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) )  =  ( ( 𝑈 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐾 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( 𝑅 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) )  | 
						
						
							| 53 | 
							
								
							 | 
							fveq2 | 
							⊢ ( 𝑝  =  𝑥  →  ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 )  =  ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) )  | 
						
						
							| 54 | 
							
								
							 | 
							fveq2 | 
							⊢ ( 𝑝  =  𝑥  →  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 )  =  ( ( 1st  ‘ 𝐿 ) ‘ 𝑥 ) )  | 
						
						
							| 55 | 
							
								53 54
							 | 
							opeq12d | 
							⊢ ( 𝑝  =  𝑥  →  〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  =  〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑥 ) 〉 )  | 
						
						
							| 56 | 
							
								
							 | 
							fveq2 | 
							⊢ ( 𝑝  =  𝑥  →  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 )  =  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) )  | 
						
						
							| 57 | 
							
								55 56
							 | 
							oveq12d | 
							⊢ ( 𝑝  =  𝑥  →  ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) )  =  ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑥 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) )  | 
						
						
							| 58 | 
							
								
							 | 
							fveq2 | 
							⊢ ( 𝑝  =  𝑥  →  ( 𝑉 ‘ 𝑝 )  =  ( 𝑉 ‘ 𝑥 ) )  | 
						
						
							| 59 | 
							
								
							 | 
							fveq2 | 
							⊢ ( 𝑝  =  𝑥  →  ( 𝑆 ‘ 𝑝 )  =  ( 𝑆 ‘ 𝑥 ) )  | 
						
						
							| 60 | 
							
								57 58 59
							 | 
							oveq123d | 
							⊢ ( 𝑝  =  𝑥  →  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) )  =  ( ( 𝑉 ‘ 𝑥 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑥 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 𝑆 ‘ 𝑥 ) ) )  | 
						
						
							| 61 | 
							
								
							 | 
							eqid | 
							⊢ ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) )  =  ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) )  | 
						
						
							| 62 | 
							
								
							 | 
							ovex | 
							⊢ ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) )  ∈  V  | 
						
						
							| 63 | 
							
								60 61 62
							 | 
							fvmpt3i | 
							⊢ ( 𝑥  ∈  ( Base ‘ 𝐶 )  →  ( ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) ‘ 𝑥 )  =  ( ( 𝑉 ‘ 𝑥 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑥 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 𝑆 ‘ 𝑥 ) ) )  | 
						
						
							| 64 | 
							
								63
							 | 
							fveq2d | 
							⊢ ( 𝑥  ∈  ( Base ‘ 𝐶 )  →  ( ( ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ( 2nd  ‘ 𝐹 ) ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ‘ ( ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) ‘ 𝑥 ) )  =  ( ( ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ( 2nd  ‘ 𝐹 ) ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ‘ ( ( 𝑉 ‘ 𝑥 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑥 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 𝑆 ‘ 𝑥 ) ) ) )  | 
						
						
							| 65 | 
							
								64
							 | 
							adantl | 
							⊢ ( ( 𝜑  ∧  𝑥  ∈  ( Base ‘ 𝐶 ) )  →  ( ( ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ( 2nd  ‘ 𝐹 ) ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ‘ ( ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) ‘ 𝑥 ) )  =  ( ( ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ( 2nd  ‘ 𝐹 ) ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ‘ ( ( 𝑉 ‘ 𝑥 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑥 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 𝑆 ‘ 𝑥 ) ) ) )  | 
						
						
							| 66 | 
							
								52 65
							 | 
							oveq12d | 
							⊢ ( ( 𝜑  ∧  𝑥  ∈  ( Base ‘ 𝐶 ) )  →  ( ( ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( ( ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ( 2nd  ‘ 𝐹 ) ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ‘ ( ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) ‘ 𝑥 ) ) )  =  ( ( ( 𝑈 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐾 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( 𝑅 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( ( ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ( 2nd  ‘ 𝐹 ) ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ‘ ( ( 𝑉 ‘ 𝑥 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑥 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 𝑆 ‘ 𝑥 ) ) ) ) )  | 
						
						
							| 67 | 
							
								66
							 | 
							mpteq2dva | 
							⊢ ( 𝜑  →  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( ( 𝑝  ∈  ( Base ‘ 𝐷 )  ↦  ( ( 𝑈 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐾 ) ‘ 𝑝 ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ 𝑝 ) ) ( 𝑅 ‘ 𝑝 ) ) ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( ( ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ( 2nd  ‘ 𝐹 ) ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ‘ ( ( 𝑝  ∈  ( Base ‘ 𝐶 )  ↦  ( ( 𝑉 ‘ 𝑝 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑝 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑝 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑝 ) ) ( 𝑆 ‘ 𝑝 ) ) ) ‘ 𝑥 ) ) ) )  =  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( ( 𝑈 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐾 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( 𝑅 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( ( ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ( 2nd  ‘ 𝐹 ) ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ‘ ( ( 𝑉 ‘ 𝑥 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑥 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 𝑆 ‘ 𝑥 ) ) ) ) ) )  | 
						
						
							| 68 | 
							
								24 31 67
							 | 
							3eqtrd | 
							⊢ ( 𝜑  →  ( ( 𝑋 𝑃 𝑍 ) ‘ ( 𝐵 ( 〈 𝑋 ,  𝑌 〉  ·  𝑍 ) 𝐴 ) )  =  ( 𝑥  ∈  ( Base ‘ 𝐶 )  ↦  ( ( ( 𝑈 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐾 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( 𝑅 ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( 〈 ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ) ,  ( ( 1st  ‘ 𝐹 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) 〉 ( comp ‘ 𝐸 ) ( ( 1st  ‘ 𝑀 ) ‘ ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ) ( ( ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ( 2nd  ‘ 𝐹 ) ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ‘ ( ( 𝑉 ‘ 𝑥 ) ( 〈 ( ( 1st  ‘ 𝐺 ) ‘ 𝑥 ) ,  ( ( 1st  ‘ 𝐿 ) ‘ 𝑥 ) 〉  ∗  ( ( 1st  ‘ 𝑁 ) ‘ 𝑥 ) ) ( 𝑆 ‘ 𝑥 ) ) ) ) ) )  |