| Step | Hyp | Ref | Expression | 
						
							| 1 |  | dalawlem.l |  | 
						
							| 2 |  | dalawlem.j |  | 
						
							| 3 |  | dalawlem.m |  | 
						
							| 4 |  | dalawlem.a |  | 
						
							| 5 |  | simp1 |  | 
						
							| 6 | 5 | hllatd |  | 
						
							| 7 |  | simp2l |  | 
						
							| 8 |  | simp2r |  | 
						
							| 9 |  | eqid |  | 
						
							| 10 | 9 2 4 | hlatjcl |  | 
						
							| 11 | 5 7 8 10 | syl3anc |  | 
						
							| 12 |  | simp3r |  | 
						
							| 13 | 9 4 | atbase |  | 
						
							| 14 | 12 13 | syl |  | 
						
							| 15 | 9 1 2 | latlej1 |  | 
						
							| 16 | 6 11 14 15 | syl3anc |  | 
						
							| 17 |  | simp3l |  | 
						
							| 18 | 9 4 | atbase |  | 
						
							| 19 | 17 18 | syl |  | 
						
							| 20 | 9 1 2 | latlej1 |  | 
						
							| 21 | 6 11 19 20 | syl3anc |  | 
						
							| 22 | 9 2 | latjcl |  | 
						
							| 23 | 6 11 14 22 | syl3anc |  | 
						
							| 24 | 9 2 | latjcl |  | 
						
							| 25 | 6 11 19 24 | syl3anc |  | 
						
							| 26 | 9 1 3 | latlem12 |  | 
						
							| 27 | 6 11 23 25 26 | syl13anc |  | 
						
							| 28 | 16 21 27 | mpbi2and |  | 
						
							| 29 | 9 3 | latmcl |  | 
						
							| 30 | 6 23 25 29 | syl3anc |  | 
						
							| 31 | 9 2 4 | hlatjcl |  | 
						
							| 32 | 5 17 12 31 | syl3anc |  | 
						
							| 33 | 9 1 3 | latmlem1 |  | 
						
							| 34 | 6 11 30 32 33 | syl13anc |  | 
						
							| 35 | 28 34 | mpd |  | 
						
							| 36 | 9 1 2 | latlej2 |  | 
						
							| 37 | 6 11 19 36 | syl3anc |  | 
						
							| 38 | 9 1 2 3 4 | atmod3i1 |  | 
						
							| 39 | 5 17 25 14 37 38 | syl131anc |  | 
						
							| 40 | 39 | oveq2d |  | 
						
							| 41 | 9 3 | latmcl |  | 
						
							| 42 | 6 25 14 41 | syl3anc |  | 
						
							| 43 | 9 1 2 3 | latmlej22 |  | 
						
							| 44 | 6 14 25 11 43 | syl13anc |  | 
						
							| 45 | 9 1 2 3 4 | atmod2i2 |  | 
						
							| 46 | 5 17 23 42 44 45 | syl131anc |  | 
						
							| 47 |  | hlol |  | 
						
							| 48 | 5 47 | syl |  | 
						
							| 49 | 9 3 | latmassOLD |  | 
						
							| 50 | 48 23 25 32 49 | syl13anc |  | 
						
							| 51 | 40 46 50 | 3eqtr4rd |  | 
						
							| 52 | 35 51 | breqtrd |  |