| Step | Hyp | Ref | Expression | 
						
							| 1 |  | islmod.v |  | 
						
							| 2 |  | islmod.a |  | 
						
							| 3 |  | islmod.s |  | 
						
							| 4 |  | islmod.f |  | 
						
							| 5 |  | islmod.k |  | 
						
							| 6 |  | islmod.p |  | 
						
							| 7 |  | islmod.t |  | 
						
							| 8 |  | islmod.u |  | 
						
							| 9 | 1 2 3 4 5 6 7 8 | islmod |  | 
						
							| 10 | 9 | simp3bi |  | 
						
							| 11 |  | oveq1 |  | 
						
							| 12 | 11 | oveq1d |  | 
						
							| 13 |  | oveq1 |  | 
						
							| 14 | 13 | oveq1d |  | 
						
							| 15 | 12 14 | eqeq12d |  | 
						
							| 16 | 15 | 3anbi3d |  | 
						
							| 17 |  | oveq1 |  | 
						
							| 18 | 17 | oveq1d |  | 
						
							| 19 |  | oveq1 |  | 
						
							| 20 | 18 19 | eqeq12d |  | 
						
							| 21 | 20 | anbi1d |  | 
						
							| 22 | 16 21 | anbi12d |  | 
						
							| 23 | 22 | 2ralbidv |  | 
						
							| 24 |  | oveq1 |  | 
						
							| 25 | 24 | eleq1d |  | 
						
							| 26 |  | oveq1 |  | 
						
							| 27 |  | oveq1 |  | 
						
							| 28 | 24 27 | oveq12d |  | 
						
							| 29 | 26 28 | eqeq12d |  | 
						
							| 30 |  | oveq2 |  | 
						
							| 31 | 30 | oveq1d |  | 
						
							| 32 | 24 | oveq2d |  | 
						
							| 33 | 31 32 | eqeq12d |  | 
						
							| 34 | 25 29 33 | 3anbi123d |  | 
						
							| 35 |  | oveq2 |  | 
						
							| 36 | 35 | oveq1d |  | 
						
							| 37 | 24 | oveq2d |  | 
						
							| 38 | 36 37 | eqeq12d |  | 
						
							| 39 | 38 | anbi1d |  | 
						
							| 40 | 34 39 | anbi12d |  | 
						
							| 41 | 40 | 2ralbidv |  | 
						
							| 42 | 23 41 | rspc2v |  | 
						
							| 43 | 10 42 | mpan9 |  | 
						
							| 44 |  | oveq2 |  | 
						
							| 45 | 44 | oveq2d |  | 
						
							| 46 |  | oveq2 |  | 
						
							| 47 | 46 | oveq2d |  | 
						
							| 48 | 45 47 | eqeq12d |  | 
						
							| 49 | 48 | 3anbi2d |  | 
						
							| 50 | 49 | anbi1d |  | 
						
							| 51 |  | oveq2 |  | 
						
							| 52 | 51 | eleq1d |  | 
						
							| 53 |  | oveq1 |  | 
						
							| 54 | 53 | oveq2d |  | 
						
							| 55 | 51 | oveq1d |  | 
						
							| 56 | 54 55 | eqeq12d |  | 
						
							| 57 |  | oveq2 |  | 
						
							| 58 |  | oveq2 |  | 
						
							| 59 | 58 51 | oveq12d |  | 
						
							| 60 | 57 59 | eqeq12d |  | 
						
							| 61 | 52 56 60 | 3anbi123d |  | 
						
							| 62 |  | oveq2 |  | 
						
							| 63 | 51 | oveq2d |  | 
						
							| 64 | 62 63 | eqeq12d |  | 
						
							| 65 |  | oveq2 |  | 
						
							| 66 |  | id |  | 
						
							| 67 | 65 66 | eqeq12d |  | 
						
							| 68 | 64 67 | anbi12d |  | 
						
							| 69 | 61 68 | anbi12d |  | 
						
							| 70 | 50 69 | rspc2v |  | 
						
							| 71 | 43 70 | syl5com |  | 
						
							| 72 | 71 | 3impia |  |