| Step | Hyp | Ref | Expression | 
						
							| 1 |  | llnnleat.l |  | 
						
							| 2 |  | llnnleat.a |  | 
						
							| 3 |  | llnnleat.n |  | 
						
							| 4 |  | simp2 |  | 
						
							| 5 |  | eqid |  | 
						
							| 6 |  | eqid |  | 
						
							| 7 | 5 6 2 3 | islln |  | 
						
							| 8 | 7 | 3ad2ant1 |  | 
						
							| 9 | 4 8 | mpbid |  | 
						
							| 10 | 9 | simprd |  | 
						
							| 11 |  | simp11 |  | 
						
							| 12 |  | hlatl |  | 
						
							| 13 | 11 12 | syl |  | 
						
							| 14 |  | simp2 |  | 
						
							| 15 |  | simp13 |  | 
						
							| 16 |  | eqid |  | 
						
							| 17 | 16 2 | atnlt |  | 
						
							| 18 | 13 14 15 17 | syl3anc |  | 
						
							| 19 | 5 2 | atbase |  | 
						
							| 20 | 19 | 3ad2ant2 |  | 
						
							| 21 |  | simp12 |  | 
						
							| 22 | 5 3 | llnbase |  | 
						
							| 23 | 21 22 | syl |  | 
						
							| 24 |  | simp3 |  | 
						
							| 25 | 5 16 6 | cvrlt |  | 
						
							| 26 | 11 20 23 24 25 | syl31anc |  | 
						
							| 27 |  | hlpos |  | 
						
							| 28 | 11 27 | syl |  | 
						
							| 29 | 5 2 | atbase |  | 
						
							| 30 | 15 29 | syl |  | 
						
							| 31 | 5 1 16 | pltletr |  | 
						
							| 32 | 28 20 23 30 31 | syl13anc |  | 
						
							| 33 | 26 32 | mpand |  | 
						
							| 34 | 18 33 | mtod |  | 
						
							| 35 | 34 | rexlimdv3a |  | 
						
							| 36 | 10 35 | mpd |  |