| Step | Hyp | Ref | Expression | 
						
							| 1 |  | cdlemk5.b |  | 
						
							| 2 |  | cdlemk5.l |  | 
						
							| 3 |  | cdlemk5.j |  | 
						
							| 4 |  | cdlemk5.m |  | 
						
							| 5 |  | cdlemk5.a |  | 
						
							| 6 |  | cdlemk5.h |  | 
						
							| 7 |  | cdlemk5.t |  | 
						
							| 8 |  | cdlemk5.r |  | 
						
							| 9 |  | cdlemk5.z |  | 
						
							| 10 |  | cdlemk5.y |  | 
						
							| 11 |  | cdlemk5.x |  | 
						
							| 12 |  | cdlemk5.u |  | 
						
							| 13 |  | simpr |  | 
						
							| 14 |  | simpl23 |  | 
						
							| 15 | 11 12 | cdlemk40t |  | 
						
							| 16 | 13 14 15 | syl2anc |  | 
						
							| 17 | 16 14 | eqeltrd |  | 
						
							| 18 |  | simpr |  | 
						
							| 19 |  | simpl23 |  | 
						
							| 20 | 11 12 | cdlemk40f |  | 
						
							| 21 | 18 19 20 | syl2anc |  | 
						
							| 22 |  | simpl1l |  | 
						
							| 23 |  | simpl21 |  | 
						
							| 24 |  | simpl22 |  | 
						
							| 25 |  | simpl1r |  | 
						
							| 26 | 1 6 7 8 | trlnid |  | 
						
							| 27 | 22 23 24 18 25 26 | syl122anc |  | 
						
							| 28 | 23 27 | jca |  | 
						
							| 29 |  | simpl3 |  | 
						
							| 30 | 1 2 3 4 5 6 7 8 9 10 11 | cdlemk35s-id |  | 
						
							| 31 | 22 28 19 24 29 25 30 | syl132anc |  | 
						
							| 32 | 21 31 | eqeltrd |  | 
						
							| 33 | 17 32 | pm2.61dane |  |