| Step | Hyp | Ref | Expression | 
						
							| 1 |  | cdlemg12.l |  | 
						
							| 2 |  | cdlemg12.j |  | 
						
							| 3 |  | cdlemg12.m |  | 
						
							| 4 |  | cdlemg12.a |  | 
						
							| 5 |  | cdlemg12.h |  | 
						
							| 6 |  | cdlemg12.t |  | 
						
							| 7 |  | cdlemg12b.r |  | 
						
							| 8 |  | simpl1 |  | 
						
							| 9 |  | simpl2 |  | 
						
							| 10 |  | simpr |  | 
						
							| 11 |  | simpl3l |  | 
						
							| 12 |  | simpl3r |  | 
						
							| 13 | 1 2 3 4 5 6 7 | cdlemg22 |  | 
						
							| 14 | 8 9 10 11 12 13 | syl113anc |  | 
						
							| 15 |  | simpl1 |  | 
						
							| 16 |  | simpl2 |  | 
						
							| 17 |  | simpr |  | 
						
							| 18 |  | simpl3l |  | 
						
							| 19 |  | simpl3r |  | 
						
							| 20 | 1 2 3 4 5 6 7 | cdlemg20 |  | 
						
							| 21 | 15 16 17 18 19 20 | syl113anc |  | 
						
							| 22 |  | simpl1 |  | 
						
							| 23 |  | simpl2 |  | 
						
							| 24 |  | simprl |  | 
						
							| 25 |  | simprr |  | 
						
							| 26 | 1 2 3 4 5 6 7 | cdlemg16z |  | 
						
							| 27 | 22 23 24 25 26 | syl112anc |  | 
						
							| 28 | 14 21 27 | pm2.61ddan |  |