| Step | Hyp | Ref | Expression | 
						
							| 1 |  | r19.26 |  | 
						
							| 2 |  | vex |  | 
						
							| 3 | 2 2 | brcnv |  | 
						
							| 4 |  | id |  | 
						
							| 5 | 4 4 | breq12d |  | 
						
							| 6 | 3 5 | bitrid |  | 
						
							| 7 | 6 | notbid |  | 
						
							| 8 | 7 | cbvralvw |  | 
						
							| 9 |  | vex |  | 
						
							| 10 | 2 9 | brcnv |  | 
						
							| 11 |  | vex |  | 
						
							| 12 | 9 11 | brcnv |  | 
						
							| 13 | 10 12 | anbi12ci |  | 
						
							| 14 | 2 11 | brcnv |  | 
						
							| 15 | 13 14 | imbi12i |  | 
						
							| 16 | 15 | ralbii |  | 
						
							| 17 | 8 16 | anbi12i |  | 
						
							| 18 | 1 17 | bitr2i |  | 
						
							| 19 | 18 | ralbii |  | 
						
							| 20 |  | r19.26 |  | 
						
							| 21 |  | ralidm |  | 
						
							| 22 |  | rzal |  | 
						
							| 23 |  | rzal |  | 
						
							| 24 | 22 23 | 2thd |  | 
						
							| 25 |  | r19.3rzv |  | 
						
							| 26 | 25 | ralbidv |  | 
						
							| 27 | 24 26 | pm2.61ine |  | 
						
							| 28 | 21 27 | bitr2i |  | 
						
							| 29 | 28 | anbi1i |  | 
						
							| 30 | 20 29 | bitri |  | 
						
							| 31 |  | r19.26 |  | 
						
							| 32 | 31 | ralbii |  | 
						
							| 33 |  | r19.26 |  | 
						
							| 34 | 30 32 33 | 3bitr4i |  | 
						
							| 35 |  | ralcom |  | 
						
							| 36 | 19 34 35 | 3bitr4i |  | 
						
							| 37 | 36 | ralbii |  | 
						
							| 38 |  | ralcom |  | 
						
							| 39 |  | ralcom |  | 
						
							| 40 | 37 38 39 | 3bitr4i |  | 
						
							| 41 |  | df-po |  | 
						
							| 42 |  | df-po |  | 
						
							| 43 | 40 41 42 | 3bitr4i |  |