| Step | Hyp | Ref | Expression | 
						
							| 1 |  | cdlemk3.b |  | 
						
							| 2 |  | cdlemk3.l |  | 
						
							| 3 |  | cdlemk3.j |  | 
						
							| 4 |  | cdlemk3.m |  | 
						
							| 5 |  | cdlemk3.a |  | 
						
							| 6 |  | cdlemk3.h |  | 
						
							| 7 |  | cdlemk3.t |  | 
						
							| 8 |  | cdlemk3.r |  | 
						
							| 9 |  | cdlemk3.s |  | 
						
							| 10 |  | cdlemk3.u1 |  | 
						
							| 11 |  | simpl1 |  | 
						
							| 12 |  | simpl2 |  | 
						
							| 13 |  | simpl31 |  | 
						
							| 14 |  | simpl32 |  | 
						
							| 15 |  | simpr |  | 
						
							| 16 | 14 15 | jca |  | 
						
							| 17 |  | simpl33 |  | 
						
							| 18 | 1 2 3 4 5 6 7 8 9 10 | cdlemk24-3 |  | 
						
							| 19 | 11 12 13 16 17 18 | syl113anc |  | 
						
							| 20 |  | simp11 |  | 
						
							| 21 |  | simp121 |  | 
						
							| 22 |  | simp122 |  | 
						
							| 23 | 20 21 22 | 3jca |  | 
						
							| 24 | 23 | adantr |  | 
						
							| 25 |  | simp123 |  | 
						
							| 26 |  | simp131 |  | 
						
							| 27 |  | simp132 |  | 
						
							| 28 | 25 26 27 | 3jca |  | 
						
							| 29 |  | simp21 |  | 
						
							| 30 |  | simp221 |  | 
						
							| 31 | 28 29 30 | 3jca |  | 
						
							| 32 | 31 | adantr |  | 
						
							| 33 |  | simp222 |  | 
						
							| 34 |  | simp223 |  | 
						
							| 35 |  | simp231 |  | 
						
							| 36 | 33 34 35 | 3jca |  | 
						
							| 37 | 36 | adantr |  | 
						
							| 38 |  | simp232 |  | 
						
							| 39 |  | simp311 |  | 
						
							| 40 |  | simp312 |  | 
						
							| 41 | 38 39 40 | 3jca |  | 
						
							| 42 | 41 | adantr |  | 
						
							| 43 |  | simp313 |  | 
						
							| 44 | 43 | adantr |  | 
						
							| 45 |  | simpl32 |  | 
						
							| 46 |  | simpr |  | 
						
							| 47 | 44 45 46 | 3jca |  | 
						
							| 48 | 1 2 3 4 5 6 7 8 9 10 | cdlemk22-3 |  | 
						
							| 49 | 24 32 37 42 47 48 | syl113anc |  | 
						
							| 50 | 19 49 | pm2.61dane |  |