| Step | Hyp | Ref | Expression | 
						
							| 1 |  | 2llnma1b.b |  | 
						
							| 2 |  | 2llnma1b.l |  | 
						
							| 3 |  | 2llnma1b.j |  | 
						
							| 4 |  | 2llnma1b.m |  | 
						
							| 5 |  | 2llnma1b.a |  | 
						
							| 6 |  | hllat |  | 
						
							| 7 | 6 | 3ad2ant1 |  | 
						
							| 8 |  | simp22 |  | 
						
							| 9 | 1 5 | atbase |  | 
						
							| 10 | 8 9 | syl |  | 
						
							| 11 |  | simp21 |  | 
						
							| 12 | 1 2 3 | latlej1 |  | 
						
							| 13 | 7 10 11 12 | syl3anc |  | 
						
							| 14 |  | simp23 |  | 
						
							| 15 | 1 5 | atbase |  | 
						
							| 16 | 14 15 | syl |  | 
						
							| 17 | 1 2 3 | latlej1 |  | 
						
							| 18 | 7 10 16 17 | syl3anc |  | 
						
							| 19 | 1 3 | latjcl |  | 
						
							| 20 | 7 10 11 19 | syl3anc |  | 
						
							| 21 |  | simp1 |  | 
						
							| 22 | 1 3 5 | hlatjcl |  | 
						
							| 23 | 21 8 14 22 | syl3anc |  | 
						
							| 24 | 1 2 4 | latlem12 |  | 
						
							| 25 | 7 10 20 23 24 | syl13anc |  | 
						
							| 26 | 13 18 25 | mpbi2and |  | 
						
							| 27 |  | hlatl |  | 
						
							| 28 | 27 | 3ad2ant1 |  | 
						
							| 29 |  | simp3 |  | 
						
							| 30 |  | nbrne2 |  | 
						
							| 31 | 13 29 30 | syl2anc |  | 
						
							| 32 | 1 3 | latjcl |  | 
						
							| 33 | 7 20 16 32 | syl3anc |  | 
						
							| 34 | 1 2 3 | latlej1 |  | 
						
							| 35 | 7 20 16 34 | syl3anc |  | 
						
							| 36 | 1 2 7 10 20 33 13 35 | lattrd |  | 
						
							| 37 | 1 2 3 4 5 | cvrat3 |  | 
						
							| 38 | 37 | 3impia |  | 
						
							| 39 | 21 20 8 14 31 29 36 38 | syl133anc |  | 
						
							| 40 | 2 5 | atcmp |  | 
						
							| 41 | 28 8 39 40 | syl3anc |  | 
						
							| 42 | 26 41 | mpbid |  | 
						
							| 43 | 42 | eqcomd |  |