| Step | Hyp | Ref | Expression | 
						
							| 1 |  | merco1lem11 |  | 
						
							| 2 |  | merco1lem7 |  | 
						
							| 3 |  | merco1 |  | 
						
							| 4 | 2 3 | ax-mp |  | 
						
							| 5 |  | merco1lem9 |  | 
						
							| 6 | 4 5 | ax-mp |  | 
						
							| 7 | 1 6 | ax-mp |  | 
						
							| 8 |  | merco1 |  | 
						
							| 9 | 7 8 | ax-mp |  | 
						
							| 10 |  | merco1lem11 |  | 
						
							| 11 |  | merco1lem7 |  | 
						
							| 12 |  | merco1 |  | 
						
							| 13 | 11 12 | ax-mp |  | 
						
							| 14 |  | merco1lem9 |  | 
						
							| 15 | 13 14 | ax-mp |  | 
						
							| 16 | 10 15 | ax-mp |  | 
						
							| 17 |  | merco1 |  | 
						
							| 18 | 16 17 | ax-mp |  | 
						
							| 19 | 9 18 | ax-mp |  | 
						
							| 20 |  | merco1lem16 |  | 
						
							| 21 | 19 20 | ax-mp |  | 
						
							| 22 |  | merco1lem4 |  | 
						
							| 23 |  | merco1lem11 |  | 
						
							| 24 | 22 23 | ax-mp |  | 
						
							| 25 |  | merco1 |  | 
						
							| 26 | 24 25 | ax-mp |  | 
						
							| 27 | 21 26 | ax-mp |  | 
						
							| 28 |  | merco1 |  | 
						
							| 29 | 27 28 | ax-mp |  |