| Step | Hyp | Ref | Expression | 
						
							| 1 |  | 0z |  | 
						
							| 2 |  | 1z |  | 
						
							| 3 | 1 2 | pm3.2i |  | 
						
							| 4 |  | 2z |  | 
						
							| 5 | 2 4 | pm3.2i |  | 
						
							| 6 | 3 5 | pm3.2i |  | 
						
							| 7 |  | ax-1ne0 |  | 
						
							| 8 | 7 | necomi |  | 
						
							| 9 |  | 2ne0 |  | 
						
							| 10 | 9 | necomi |  | 
						
							| 11 | 8 10 | pm3.2i |  | 
						
							| 12 | 11 | orci |  | 
						
							| 13 |  | prneimg |  | 
						
							| 14 | 6 12 13 | mp2 |  | 
						
							| 15 | 4 1 | pm3.2i |  | 
						
							| 16 | 3 15 | pm3.2i |  | 
						
							| 17 |  | 1ne2 |  | 
						
							| 18 | 17 7 | pm3.2i |  | 
						
							| 19 | 18 | olci |  | 
						
							| 20 |  | prneimg |  | 
						
							| 21 | 16 19 20 | mp2 |  | 
						
							| 22 |  | 3nn |  | 
						
							| 23 | 1 22 | pm3.2i |  | 
						
							| 24 | 3 23 | pm3.2i |  | 
						
							| 25 |  | 1re |  | 
						
							| 26 |  | 1lt3 |  | 
						
							| 27 | 25 26 | ltneii |  | 
						
							| 28 | 7 27 | pm3.2i |  | 
						
							| 29 | 28 | olci |  | 
						
							| 30 |  | prneimg |  | 
						
							| 31 | 24 29 30 | mp2 |  | 
						
							| 32 | 14 21 31 | 3pm3.2i |  | 
						
							| 33 | 5 15 | pm3.2i |  | 
						
							| 34 | 18 | orci |  | 
						
							| 35 |  | prneimg |  | 
						
							| 36 | 33 34 35 | mp2 |  | 
						
							| 37 | 5 23 | pm3.2i |  | 
						
							| 38 | 28 | orci |  | 
						
							| 39 |  | prneimg |  | 
						
							| 40 | 37 38 39 | mp2 |  | 
						
							| 41 | 15 23 | pm3.2i |  | 
						
							| 42 |  | 2re |  | 
						
							| 43 |  | 2lt3 |  | 
						
							| 44 | 42 43 | ltneii |  | 
						
							| 45 | 9 44 | pm3.2i |  | 
						
							| 46 | 45 | orci |  | 
						
							| 47 |  | prneimg |  | 
						
							| 48 | 41 46 47 | mp2 |  | 
						
							| 49 | 36 40 48 | 3pm3.2i |  | 
						
							| 50 | 32 49 | pm3.2i |  |