| Step | Hyp | Ref | Expression | 
						
							| 1 |  | ltrnel.l |  | 
						
							| 2 |  | ltrnel.a |  | 
						
							| 3 |  | ltrnel.h |  | 
						
							| 4 |  | ltrnel.t |  | 
						
							| 5 | 1 2 3 4 | ltrncnvat |  | 
						
							| 6 | 5 | 3adant3r |  | 
						
							| 7 |  | simp3r |  | 
						
							| 8 |  | simp1 |  | 
						
							| 9 |  | simp2 |  | 
						
							| 10 |  | eqid |  | 
						
							| 11 | 10 2 | atbase |  | 
						
							| 12 | 6 11 | syl |  | 
						
							| 13 |  | simp1r |  | 
						
							| 14 | 10 3 | lhpbase |  | 
						
							| 15 | 13 14 | syl |  | 
						
							| 16 | 10 1 3 4 | ltrnle |  | 
						
							| 17 | 8 9 12 15 16 | syl112anc |  | 
						
							| 18 | 10 3 4 | ltrn1o |  | 
						
							| 19 | 18 | 3adant3 |  | 
						
							| 20 |  | simp3l |  | 
						
							| 21 | 10 2 | atbase |  | 
						
							| 22 | 20 21 | syl |  | 
						
							| 23 |  | f1ocnvfv2 |  | 
						
							| 24 | 19 22 23 | syl2anc |  | 
						
							| 25 |  | simp1l |  | 
						
							| 26 | 25 | hllatd |  | 
						
							| 27 | 10 1 | latref |  | 
						
							| 28 | 26 15 27 | syl2anc |  | 
						
							| 29 | 10 1 3 4 | ltrnval1 |  | 
						
							| 30 | 8 9 15 28 29 | syl112anc |  | 
						
							| 31 | 24 30 | breq12d |  | 
						
							| 32 | 17 31 | bitrd |  | 
						
							| 33 | 7 32 | mtbird |  | 
						
							| 34 | 6 33 | jca |  |