| Step | Hyp | Ref | Expression | 
						
							| 1 |  | simprrl |  | 
						
							| 2 |  | simprlr |  | 
						
							| 3 |  | simpl11 |  | 
						
							| 4 |  | simpl21 |  | 
						
							| 5 |  | simpr |  | 
						
							| 6 |  | simpl22 |  | 
						
							| 7 |  | simpl32 |  | 
						
							| 8 |  | simpl33 |  | 
						
							| 9 |  | cgrxfr |  | 
						
							| 10 | 3 4 5 6 7 8 9 | syl132anc |  | 
						
							| 11 | 10 | adantr |  | 
						
							| 12 | 1 2 11 | mp2and |  | 
						
							| 13 |  | anass |  | 
						
							| 14 |  | simpl11 |  | 
						
							| 15 |  | simpl21 |  | 
						
							| 16 |  | simprl |  | 
						
							| 17 |  | simpl22 |  | 
						
							| 18 |  | simpl32 |  | 
						
							| 19 |  | simprr |  | 
						
							| 20 |  | simpl33 |  | 
						
							| 21 |  | brcgr3 |  | 
						
							| 22 | 14 15 16 17 18 19 20 21 | syl133anc |  | 
						
							| 23 | 22 | adantr |  | 
						
							| 24 |  | df-3an |  | 
						
							| 25 |  | simpl23 |  | 
						
							| 26 |  | simpl31 |  | 
						
							| 27 |  | simpl12 |  | 
						
							| 28 |  | simpl13 |  | 
						
							| 29 |  | simpr1l |  | 
						
							| 30 |  | simpr2r |  | 
						
							| 31 | 14 27 28 25 26 15 16 29 30 | cgrtr4and |  | 
						
							| 32 |  | simpr31 |  | 
						
							| 33 | 14 25 26 15 16 18 19 31 32 | cgrtrand |  | 
						
							| 34 | 24 33 | sylan2br |  | 
						
							| 35 | 34 | expr |  | 
						
							| 36 | 23 35 | sylbid |  | 
						
							| 37 | 36 | anim2d |  | 
						
							| 38 | 13 37 | sylanb |  | 
						
							| 39 | 38 | an32s |  | 
						
							| 40 | 39 | reximdva |  | 
						
							| 41 | 12 40 | mpd |  | 
						
							| 42 | 41 | expr |  | 
						
							| 43 | 42 | an32s |  | 
						
							| 44 | 43 | rexlimdva |  | 
						
							| 45 |  | simp11 |  | 
						
							| 46 |  | simp12 |  | 
						
							| 47 |  | simp13 |  | 
						
							| 48 |  | simp21 |  | 
						
							| 49 |  | simp22 |  | 
						
							| 50 |  | brsegle |  | 
						
							| 51 | 45 46 47 48 49 50 | syl122anc |  | 
						
							| 52 | 51 | adantr |  | 
						
							| 53 |  | simp23 |  | 
						
							| 54 |  | simp31 |  | 
						
							| 55 |  | simp32 |  | 
						
							| 56 |  | simp33 |  | 
						
							| 57 |  | brsegle |  | 
						
							| 58 | 45 53 54 55 56 57 | syl122anc |  | 
						
							| 59 | 58 | adantr |  | 
						
							| 60 | 44 52 59 | 3imtr4d |  | 
						
							| 61 | 60 | exp32 |  | 
						
							| 62 | 61 | 3impd |  |