| Step | Hyp | Ref | Expression | 
						
							| 0 |  | cst |  | 
						
							| 1 |  | vf |  | 
						
							| 2 |  | cc0 |  | 
						
							| 3 |  | cicc |  | 
						
							| 4 |  | c1 |  | 
						
							| 5 | 2 4 3 | co |  | 
						
							| 6 |  | cmap |  | 
						
							| 7 |  | cch |  | 
						
							| 8 | 5 7 6 | co |  | 
						
							| 9 | 1 | cv |  | 
						
							| 10 |  | chba |  | 
						
							| 11 | 10 9 | cfv |  | 
						
							| 12 | 11 4 | wceq |  | 
						
							| 13 |  | vx |  | 
						
							| 14 |  | vy |  | 
						
							| 15 | 13 | cv |  | 
						
							| 16 |  | cort |  | 
						
							| 17 | 14 | cv |  | 
						
							| 18 | 17 16 | cfv |  | 
						
							| 19 | 15 18 | wss |  | 
						
							| 20 |  | chj |  | 
						
							| 21 | 15 17 20 | co |  | 
						
							| 22 | 21 9 | cfv |  | 
						
							| 23 | 15 9 | cfv |  | 
						
							| 24 |  | caddc |  | 
						
							| 25 | 17 9 | cfv |  | 
						
							| 26 | 23 25 24 | co |  | 
						
							| 27 | 22 26 | wceq |  | 
						
							| 28 | 19 27 | wi |  | 
						
							| 29 | 28 14 7 | wral |  | 
						
							| 30 | 29 13 7 | wral |  | 
						
							| 31 | 12 30 | wa |  | 
						
							| 32 | 31 1 8 | crab |  | 
						
							| 33 | 0 32 | wceq |  |