| 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 |  | simp1l |  | 
						
							| 13 |  | simp211 |  | 
						
							| 14 |  | simp212 |  | 
						
							| 15 | 13 14 | jca |  | 
						
							| 16 |  | simp31 |  | 
						
							| 17 |  | simp213 |  | 
						
							| 18 |  | simp23 |  | 
						
							| 19 |  | simp1r |  | 
						
							| 20 | 1 2 3 4 5 6 7 8 9 10 11 | cdlemk35s-id |  | 
						
							| 21 | 12 15 16 17 18 19 20 | syl132anc |  | 
						
							| 22 | 1 6 7 | ltrn1o |  | 
						
							| 23 | 12 21 22 | syl2anc |  | 
						
							| 24 | 23 | adantr |  | 
						
							| 25 |  | f1of |  | 
						
							| 26 |  | fcoi2 |  | 
						
							| 27 | 24 25 26 | 3syl |  | 
						
							| 28 |  | simpl1l |  | 
						
							| 29 | 13 17 19 | 3jca |  | 
						
							| 30 | 29 | adantr |  | 
						
							| 31 |  | simpl23 |  | 
						
							| 32 |  | simpr |  | 
						
							| 33 | 1 2 3 4 5 6 7 8 9 10 11 | cdlemkid |  | 
						
							| 34 | 28 30 31 32 33 | syl112anc |  | 
						
							| 35 | 34 | coeq1d |  | 
						
							| 36 | 32 | coeq1d |  | 
						
							| 37 |  | simpl31 |  | 
						
							| 38 | 1 6 7 | ltrn1o |  | 
						
							| 39 | 28 37 38 | syl2anc |  | 
						
							| 40 |  | f1of |  | 
						
							| 41 |  | fcoi2 |  | 
						
							| 42 | 39 40 41 | 3syl |  | 
						
							| 43 | 36 42 | eqtrd |  | 
						
							| 44 | 43 | csbeq1d |  | 
						
							| 45 | 27 35 44 | 3eqtr4rd |  | 
						
							| 46 |  | simpl1l |  | 
						
							| 47 | 15 | adantr |  | 
						
							| 48 |  | simpl22 |  | 
						
							| 49 |  | simpr |  | 
						
							| 50 | 48 49 | jca |  | 
						
							| 51 | 17 | adantr |  | 
						
							| 52 |  | simpl23 |  | 
						
							| 53 |  | simpl1r |  | 
						
							| 54 |  | simpl3 |  | 
						
							| 55 | 1 2 3 4 5 6 7 8 9 10 11 | cdlemk53a |  | 
						
							| 56 | 46 47 50 51 52 53 54 55 | syl331anc |  | 
						
							| 57 | 45 56 | pm2.61dane |  |