| Step | Hyp | Ref | Expression | 
						
							| 1 |  | mirval.p |  | 
						
							| 2 |  | mirval.d |  | 
						
							| 3 |  | mirval.i |  | 
						
							| 4 |  | mirval.l |  | 
						
							| 5 |  | mirval.s |  | 
						
							| 6 |  | mirval.g |  | 
						
							| 7 |  | mirhl.m |  | 
						
							| 8 |  | mirhl.k |  | 
						
							| 9 |  | mirhl.a |  | 
						
							| 10 |  | mirhl.x |  | 
						
							| 11 |  | mirhl.y |  | 
						
							| 12 |  | mirhl.z |  | 
						
							| 13 |  | mirhl.1 |  | 
						
							| 14 | 6 | adantr |  | 
						
							| 15 | 9 | adantr |  | 
						
							| 16 | 10 | adantr |  | 
						
							| 17 | 12 | adantr |  | 
						
							| 18 |  | simpr |  | 
						
							| 19 | 1 2 3 4 5 14 15 7 16 17 18 | mireq |  | 
						
							| 20 | 1 3 8 10 11 12 6 | ishlg |  | 
						
							| 21 | 13 20 | mpbid |  | 
						
							| 22 | 21 | simp1d |  | 
						
							| 23 | 22 | adantr |  | 
						
							| 24 | 23 | neneqd |  | 
						
							| 25 | 19 24 | pm2.65da |  | 
						
							| 26 | 25 | neqned |  | 
						
							| 27 | 6 | adantr |  | 
						
							| 28 | 9 | adantr |  | 
						
							| 29 | 11 | adantr |  | 
						
							| 30 | 12 | adantr |  | 
						
							| 31 |  | simpr |  | 
						
							| 32 | 1 2 3 4 5 27 28 7 29 30 31 | mireq |  | 
						
							| 33 | 21 | simp2d |  | 
						
							| 34 | 33 | adantr |  | 
						
							| 35 | 34 | neneqd |  | 
						
							| 36 | 32 35 | pm2.65da |  | 
						
							| 37 | 36 | neqned |  | 
						
							| 38 | 21 | simp3d |  | 
						
							| 39 | 6 | adantr |  | 
						
							| 40 | 9 | adantr |  | 
						
							| 41 | 12 | adantr |  | 
						
							| 42 | 10 | adantr |  | 
						
							| 43 | 11 | adantr |  | 
						
							| 44 |  | simpr |  | 
						
							| 45 | 1 2 3 4 5 39 40 7 41 42 43 44 | mirbtwni |  | 
						
							| 46 | 45 | ex |  | 
						
							| 47 | 6 | adantr |  | 
						
							| 48 | 9 | adantr |  | 
						
							| 49 | 12 | adantr |  | 
						
							| 50 | 11 | adantr |  | 
						
							| 51 | 10 | adantr |  | 
						
							| 52 |  | simpr |  | 
						
							| 53 | 1 2 3 4 5 47 48 7 49 50 51 52 | mirbtwni |  | 
						
							| 54 | 53 | ex |  | 
						
							| 55 | 46 54 | orim12d |  | 
						
							| 56 | 38 55 | mpd |  | 
						
							| 57 | 1 2 3 4 5 6 9 7 10 | mircl |  | 
						
							| 58 | 1 2 3 4 5 6 9 7 11 | mircl |  | 
						
							| 59 | 1 2 3 4 5 6 9 7 12 | mircl |  | 
						
							| 60 | 1 3 8 57 58 59 6 | ishlg |  | 
						
							| 61 | 26 37 56 60 | mpbir3and |  |