| Step | Hyp | Ref | Expression | 
						
							| 1 |  | trlcoabs.l |  | 
						
							| 2 |  | trlcoabs.j |  | 
						
							| 3 |  | trlcoabs.a |  | 
						
							| 4 |  | trlcoabs.h |  | 
						
							| 5 |  | trlcoabs.t |  | 
						
							| 6 |  | trlcoabs.r |  | 
						
							| 7 | 1 3 4 5 | ltrncoval |  | 
						
							| 8 | 7 | 3adant3r |  | 
						
							| 9 | 8 | oveq1d |  | 
						
							| 10 |  | simp1 |  | 
						
							| 11 |  | simp2l |  | 
						
							| 12 | 1 3 4 5 | ltrnel |  | 
						
							| 13 | 12 | 3adant2l |  | 
						
							| 14 | 1 2 3 4 5 6 | trljat3 |  | 
						
							| 15 | 10 11 13 14 | syl3anc |  | 
						
							| 16 | 9 15 | eqtr4d |  |