| Step | Hyp | Ref | Expression | 
						
							| 1 |  | cdlemn11a.b |  | 
						
							| 2 |  | cdlemn11a.l |  | 
						
							| 3 |  | cdlemn11a.j |  | 
						
							| 4 |  | cdlemn11a.a |  | 
						
							| 5 |  | cdlemn11a.h |  | 
						
							| 6 |  | cdlemn11a.p |  | 
						
							| 7 |  | cdlemn11a.o |  | 
						
							| 8 |  | cdlemn11a.t |  | 
						
							| 9 |  | cdlemn11a.r |  | 
						
							| 10 |  | cdlemn11a.e |  | 
						
							| 11 |  | cdlemn11a.i |  | 
						
							| 12 |  | cdlemn11a.J |  | 
						
							| 13 |  | cdlemn11a.u |  | 
						
							| 14 |  | cdlemn11a.d |  | 
						
							| 15 |  | cdlemn11a.s |  | 
						
							| 16 |  | cdlemn11a.f |  | 
						
							| 17 |  | cdlemn11a.g |  | 
						
							| 18 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | cdlemn11c |  | 
						
							| 19 |  | simp1 |  | 
						
							| 20 |  | simp21 |  | 
						
							| 21 | 2 4 5 6 8 10 12 16 | dicelval3 |  | 
						
							| 22 | 19 20 21 | syl2anc |  | 
						
							| 23 |  | simp23 |  | 
						
							| 24 | 1 2 5 8 9 7 11 | dibelval3 |  | 
						
							| 25 | 19 23 24 | syl2anc |  | 
						
							| 26 | 22 25 | anbi12d |  | 
						
							| 27 |  | reeanv |  | 
						
							| 28 |  | simpl1 |  | 
						
							| 29 |  | simpl21 |  | 
						
							| 30 |  | simpl22 |  | 
						
							| 31 |  | simpl23 |  | 
						
							| 32 |  | simpr1r |  | 
						
							| 33 |  | simpr1l |  | 
						
							| 34 |  | simpr3 |  | 
						
							| 35 | 1 2 4 5 6 7 8 10 13 14 16 17 | cdlemn9 |  | 
						
							| 36 | 28 29 30 33 32 34 35 | syl123anc |  | 
						
							| 37 |  | simpr2 |  | 
						
							| 38 | 1 2 3 4 5 8 9 | cdlemn10 |  | 
						
							| 39 | 28 29 30 31 32 36 37 38 | syl133anc |  | 
						
							| 40 | 39 | 3exp2 |  | 
						
							| 41 |  | oveq12 |  | 
						
							| 42 | 41 | eqeq2d |  | 
						
							| 43 | 42 | imbi1d |  | 
						
							| 44 | 43 | imbi2d |  | 
						
							| 45 | 44 | biimprd |  | 
						
							| 46 | 45 | com23 |  | 
						
							| 47 | 46 | impr |  | 
						
							| 48 | 47 | com12 |  | 
						
							| 49 | 40 48 | syl6 |  | 
						
							| 50 | 49 | rexlimdvv |  | 
						
							| 51 | 27 50 | biimtrrid |  | 
						
							| 52 | 26 51 | sylbid |  | 
						
							| 53 | 52 | rexlimdvv |  | 
						
							| 54 | 18 53 | mpd |  |