| Step | Hyp | Ref | Expression | 
						
							| 1 |  | phlpropd.1 |  | 
						
							| 2 |  | phlpropd.2 |  | 
						
							| 3 |  | phlpropd.3 |  | 
						
							| 4 |  | phlpropd.4 |  | 
						
							| 5 |  | phlpropd.5 |  | 
						
							| 6 |  | phlpropd.6 |  | 
						
							| 7 |  | phlpropd.7 |  | 
						
							| 8 |  | phlpropd.8 |  | 
						
							| 9 | 1 2 3 4 5 6 7 | lvecpropd |  | 
						
							| 10 | 4 5 | eqtr3d |  | 
						
							| 11 | 10 | eleq1d |  | 
						
							| 12 | 8 | oveqrspc2v |  | 
						
							| 13 | 12 | anass1rs |  | 
						
							| 14 | 13 | mpteq2dva |  | 
						
							| 15 | 1 | adantr |  | 
						
							| 16 | 15 | mpteq1d |  | 
						
							| 17 | 2 | adantr |  | 
						
							| 18 | 17 | mpteq1d |  | 
						
							| 19 | 14 16 18 | 3eqtr3d |  | 
						
							| 20 |  | rlmbas |  | 
						
							| 21 | 6 20 | eqtri |  | 
						
							| 22 | 21 | a1i |  | 
						
							| 23 |  | fvex |  | 
						
							| 24 | 4 23 | eqeltrdi |  | 
						
							| 25 |  | rlmsca |  | 
						
							| 26 | 24 25 | syl |  | 
						
							| 27 |  | eqidd |  | 
						
							| 28 |  | eqidd |  | 
						
							| 29 | 1 22 2 22 4 26 5 26 6 6 3 27 7 28 | lmhmpropd |  | 
						
							| 30 | 4 | fveq2d |  | 
						
							| 31 | 30 | oveq2d |  | 
						
							| 32 | 5 | fveq2d |  | 
						
							| 33 | 32 | oveq2d |  | 
						
							| 34 | 29 31 33 | 3eqtr3d |  | 
						
							| 35 | 34 | adantr |  | 
						
							| 36 | 19 35 | eleq12d |  | 
						
							| 37 | 8 | oveqrspc2v |  | 
						
							| 38 | 37 | anabsan2 |  | 
						
							| 39 | 10 | fveq2d |  | 
						
							| 40 | 39 | adantr |  | 
						
							| 41 | 38 40 | eqeq12d |  | 
						
							| 42 | 1 2 3 | grpidpropd |  | 
						
							| 43 | 42 | adantr |  | 
						
							| 44 | 43 | eqeq2d |  | 
						
							| 45 | 41 44 | imbi12d |  | 
						
							| 46 | 10 | fveq2d |  | 
						
							| 47 | 46 | adantr |  | 
						
							| 48 | 8 | oveqrspc2v |  | 
						
							| 49 | 47 48 | fveq12d |  | 
						
							| 50 | 49 | anassrs |  | 
						
							| 51 | 50 13 | eqeq12d |  | 
						
							| 52 | 51 | ralbidva |  | 
						
							| 53 | 15 | raleqdv |  | 
						
							| 54 | 17 | raleqdv |  | 
						
							| 55 | 52 53 54 | 3bitr3d |  | 
						
							| 56 | 36 45 55 | 3anbi123d |  | 
						
							| 57 | 56 | ralbidva |  | 
						
							| 58 | 1 | raleqdv |  | 
						
							| 59 | 2 | raleqdv |  | 
						
							| 60 | 57 58 59 | 3bitr3d |  | 
						
							| 61 | 9 11 60 | 3anbi123d |  | 
						
							| 62 |  | eqid |  | 
						
							| 63 |  | eqid |  | 
						
							| 64 |  | eqid |  | 
						
							| 65 |  | eqid |  | 
						
							| 66 |  | eqid |  | 
						
							| 67 |  | eqid |  | 
						
							| 68 | 62 63 64 65 66 67 | isphl |  | 
						
							| 69 |  | eqid |  | 
						
							| 70 |  | eqid |  | 
						
							| 71 |  | eqid |  | 
						
							| 72 |  | eqid |  | 
						
							| 73 |  | eqid |  | 
						
							| 74 |  | eqid |  | 
						
							| 75 | 69 70 71 72 73 74 | isphl |  | 
						
							| 76 | 61 68 75 | 3bitr4g |  |