| Step | Hyp | Ref | Expression | 
						
							| 1 |  | dicssdvh.l |  | 
						
							| 2 |  | dicssdvh.a |  | 
						
							| 3 |  | dicssdvh.h |  | 
						
							| 4 |  | dicssdvh.i |  | 
						
							| 5 |  | dicssdvh.u |  | 
						
							| 6 |  | dicssdvh.v |  | 
						
							| 7 |  | simprl |  | 
						
							| 8 |  | simpll |  | 
						
							| 9 |  | simprr |  | 
						
							| 10 |  | eqid |  | 
						
							| 11 | 1 10 2 3 | lhpocnel |  | 
						
							| 12 | 11 | ad2antrr |  | 
						
							| 13 |  | simplr |  | 
						
							| 14 |  | eqid |  | 
						
							| 15 |  | eqid |  | 
						
							| 16 | 1 2 3 14 15 | ltrniotacl |  | 
						
							| 17 | 8 12 13 16 | syl3anc |  | 
						
							| 18 |  | eqid |  | 
						
							| 19 | 3 14 18 | tendocl |  | 
						
							| 20 | 8 9 17 19 | syl3anc |  | 
						
							| 21 | 7 20 | eqeltrd |  | 
						
							| 22 | 21 9 9 | jca31 |  | 
						
							| 23 | 22 | ex |  | 
						
							| 24 | 23 | ssopab2dv |  | 
						
							| 25 |  | opabssxp |  | 
						
							| 26 | 24 25 | sstrdi |  | 
						
							| 27 |  | eqid |  | 
						
							| 28 | 1 2 3 27 14 18 4 | dicval |  | 
						
							| 29 | 3 14 18 5 6 | dvhvbase |  | 
						
							| 30 | 29 | adantr |  | 
						
							| 31 | 26 28 30 | 3sstr4d |  |