| Step | Hyp | Ref | Expression | 
						
							| 0 |  | chg |  | 
						
							| 1 |  | vk |  | 
						
							| 2 |  | cvv |  | 
						
							| 3 |  | vw |  | 
						
							| 4 |  | clh |  | 
						
							| 5 | 1 | cv |  | 
						
							| 6 | 5 4 | cfv |  | 
						
							| 7 |  | va |  | 
						
							| 8 |  | cdvh |  | 
						
							| 9 | 5 8 | cfv |  | 
						
							| 10 | 3 | cv |  | 
						
							| 11 | 10 9 | cfv |  | 
						
							| 12 |  | vu |  | 
						
							| 13 |  | cbs |  | 
						
							| 14 |  | csca |  | 
						
							| 15 | 12 | cv |  | 
						
							| 16 | 15 14 | cfv |  | 
						
							| 17 | 16 13 | cfv |  | 
						
							| 18 |  | vb |  | 
						
							| 19 |  | chdma |  | 
						
							| 20 | 5 19 | cfv |  | 
						
							| 21 | 10 20 | cfv |  | 
						
							| 22 |  | vm |  | 
						
							| 23 | 7 | cv |  | 
						
							| 24 |  | vx |  | 
						
							| 25 | 18 | cv |  | 
						
							| 26 |  | vy |  | 
						
							| 27 |  | vv |  | 
						
							| 28 | 15 13 | cfv |  | 
						
							| 29 | 22 | cv |  | 
						
							| 30 | 24 | cv |  | 
						
							| 31 |  | cvsca |  | 
						
							| 32 | 15 31 | cfv |  | 
						
							| 33 | 27 | cv |  | 
						
							| 34 | 30 33 32 | co |  | 
						
							| 35 | 34 29 | cfv |  | 
						
							| 36 | 26 | cv |  | 
						
							| 37 |  | clcd |  | 
						
							| 38 | 5 37 | cfv |  | 
						
							| 39 | 10 38 | cfv |  | 
						
							| 40 | 39 31 | cfv |  | 
						
							| 41 | 33 29 | cfv |  | 
						
							| 42 | 36 41 40 | co |  | 
						
							| 43 | 35 42 | wceq |  | 
						
							| 44 | 43 27 28 | wral |  | 
						
							| 45 | 44 26 25 | crio |  | 
						
							| 46 | 24 25 45 | cmpt |  | 
						
							| 47 | 23 46 | wcel |  | 
						
							| 48 | 47 22 21 | wsbc |  | 
						
							| 49 | 48 18 17 | wsbc |  | 
						
							| 50 | 49 12 11 | wsbc |  | 
						
							| 51 | 50 7 | cab |  | 
						
							| 52 | 3 6 51 | cmpt |  | 
						
							| 53 | 1 2 52 | cmpt |  | 
						
							| 54 | 0 53 | wceq |  |