| Step | Hyp | Ref | Expression | 
						
							| 1 |  | pmodlem.l |  | 
						
							| 2 |  | pmodlem.j |  | 
						
							| 3 |  | pmodlem.a |  | 
						
							| 4 |  | pmodlem.s |  | 
						
							| 5 |  | pmodlem.p |  | 
						
							| 6 |  | simpl11 |  | 
						
							| 7 |  | simpl12 |  | 
						
							| 8 |  | simpl13 |  | 
						
							| 9 |  | ssinss1 |  | 
						
							| 10 | 8 9 | syl |  | 
						
							| 11 | 3 5 | sspadd1 |  | 
						
							| 12 | 6 7 10 11 | syl3anc |  | 
						
							| 13 |  | simpr |  | 
						
							| 14 |  | simpl31 |  | 
						
							| 15 | 13 14 | eqeltrd |  | 
						
							| 16 | 12 15 | sseldd |  | 
						
							| 17 |  | simpl11 |  | 
						
							| 18 | 17 | hllatd |  | 
						
							| 19 |  | simpl12 |  | 
						
							| 20 |  | simpl13 |  | 
						
							| 21 | 20 9 | syl |  | 
						
							| 22 |  | simpl31 |  | 
						
							| 23 |  | simpl32 |  | 
						
							| 24 |  | simpl21 |  | 
						
							| 25 |  | simpl22 |  | 
						
							| 26 |  | simpl23 |  | 
						
							| 27 | 3 4 | psubssat |  | 
						
							| 28 | 17 24 27 | syl2anc |  | 
						
							| 29 | 28 26 | sseldd |  | 
						
							| 30 | 20 23 | sseldd |  | 
						
							| 31 | 19 22 | sseldd |  | 
						
							| 32 | 29 30 31 | 3jca |  | 
						
							| 33 |  | simpr |  | 
						
							| 34 |  | simpl33 |  | 
						
							| 35 | 1 2 3 | hlatexch1 |  | 
						
							| 36 | 35 | imp |  | 
						
							| 37 | 17 32 33 34 36 | syl31anc |  | 
						
							| 38 |  | simp31 |  | 
						
							| 39 | 38 | snssd |  | 
						
							| 40 |  | simp22 |  | 
						
							| 41 | 39 40 | sstrd |  | 
						
							| 42 |  | simp23 |  | 
						
							| 43 | 42 | snssd |  | 
						
							| 44 |  | simp11 |  | 
						
							| 45 |  | simp12 |  | 
						
							| 46 | 45 38 | sseldd |  | 
						
							| 47 | 46 | snssd |  | 
						
							| 48 |  | simp21 |  | 
						
							| 49 | 44 48 27 | syl2anc |  | 
						
							| 50 | 49 42 | sseldd |  | 
						
							| 51 | 50 | snssd |  | 
						
							| 52 | 3 4 5 | paddss |  | 
						
							| 53 | 44 47 51 48 52 | syl13anc |  | 
						
							| 54 | 41 43 53 | mpbi2and |  | 
						
							| 55 |  | simp33 |  | 
						
							| 56 | 44 | hllatd |  | 
						
							| 57 |  | simp13 |  | 
						
							| 58 |  | simp32 |  | 
						
							| 59 | 57 58 | sseldd |  | 
						
							| 60 | 1 2 3 5 | elpadd2at2 |  | 
						
							| 61 | 56 46 50 59 60 | syl13anc |  | 
						
							| 62 | 55 61 | mpbird |  | 
						
							| 63 | 54 62 | sseldd |  | 
						
							| 64 | 17 19 20 24 25 26 22 23 37 63 | syl333anc |  | 
						
							| 65 | 23 64 | elind |  | 
						
							| 66 | 1 2 3 5 | elpaddri |  | 
						
							| 67 | 18 19 21 22 65 29 34 66 | syl322anc |  | 
						
							| 68 | 16 67 | pm2.61dane |  |