| Step | Hyp | Ref | Expression | 
						
							| 1 |  | dihjust.b |  | 
						
							| 2 |  | dihjust.l |  | 
						
							| 3 |  | dihjust.j |  | 
						
							| 4 |  | dihjust.m |  | 
						
							| 5 |  | dihjust.a |  | 
						
							| 6 |  | dihjust.h |  | 
						
							| 7 |  | dihjust.i |  | 
						
							| 8 |  | dihjust.J |  | 
						
							| 9 |  | dihjust.u |  | 
						
							| 10 |  | dihjust.s |  | 
						
							| 11 |  | dihord2c.t |  | 
						
							| 12 |  | dihord2c.r |  | 
						
							| 13 |  | dihord2c.o |  | 
						
							| 14 |  | dihord2.p |  | 
						
							| 15 |  | dihord2.e |  | 
						
							| 16 |  | dihord2.d |  | 
						
							| 17 |  | dihord2.g |  | 
						
							| 18 |  | simp11 |  | 
						
							| 19 |  | simp12 |  | 
						
							| 20 |  | simp13 |  | 
						
							| 21 |  | simp31l |  | 
						
							| 22 |  | simp31r |  | 
						
							| 23 |  | simp33 |  | 
						
							| 24 | 1 2 5 6 14 13 11 15 9 16 17 | dihordlem7b |  | 
						
							| 25 | 24 | simpld |  | 
						
							| 26 | 18 19 20 21 22 23 25 | syl123anc |  | 
						
							| 27 | 26 | fveq2d |  | 
						
							| 28 |  | simp32 |  | 
						
							| 29 | 27 28 | eqbrtrd |  |