| Step | Hyp | Ref | Expression | 
						
							| 0 |  | clf |  | 
						
							| 1 |  | vt |  | 
						
							| 2 |  | cc |  | 
						
							| 3 |  | cmap |  | 
						
							| 4 |  | chba |  | 
						
							| 5 | 2 4 3 | co |  | 
						
							| 6 |  | vx |  | 
						
							| 7 |  | vy |  | 
						
							| 8 |  | vz |  | 
						
							| 9 | 1 | cv |  | 
						
							| 10 | 6 | cv |  | 
						
							| 11 |  | csm |  | 
						
							| 12 | 7 | cv |  | 
						
							| 13 | 10 12 11 | co |  | 
						
							| 14 |  | cva |  | 
						
							| 15 | 8 | cv |  | 
						
							| 16 | 13 15 14 | co |  | 
						
							| 17 | 16 9 | cfv |  | 
						
							| 18 |  | cmul |  | 
						
							| 19 | 12 9 | cfv |  | 
						
							| 20 | 10 19 18 | co |  | 
						
							| 21 |  | caddc |  | 
						
							| 22 | 15 9 | cfv |  | 
						
							| 23 | 20 22 21 | co |  | 
						
							| 24 | 17 23 | wceq |  | 
						
							| 25 | 24 8 4 | wral |  | 
						
							| 26 | 25 7 4 | wral |  | 
						
							| 27 | 26 6 2 | wral |  | 
						
							| 28 | 27 1 5 | crab |  | 
						
							| 29 | 0 28 | wceq |  |