| Step | Hyp | Ref | Expression | 
						
							| 1 |  | ablsimpgcygd.1 |  | 
						
							| 2 |  | ablsimpgcygd.2 |  | 
						
							| 3 |  | eqid |  | 
						
							| 4 |  | eqid |  | 
						
							| 5 | 3 4 2 | simpgnideld |  | 
						
							| 6 |  | eqid |  | 
						
							| 7 | 2 | simpggrpd |  | 
						
							| 8 | 7 | adantr |  | 
						
							| 9 |  | simprl |  | 
						
							| 10 | 1 | ad2antrr |  | 
						
							| 11 | 2 | ad2antrr |  | 
						
							| 12 |  | simplrl |  | 
						
							| 13 |  | simplrr |  | 
						
							| 14 |  | simpr |  | 
						
							| 15 | 3 4 6 10 11 12 13 14 | ablsimpg1gend |  | 
						
							| 16 | 3 6 8 9 15 | iscygd |  | 
						
							| 17 | 5 16 | rexlimddv |  |