| Step | Hyp | Ref
| Expression |
| 1 | | cytpval.p |
. . . . . . 7
Poly1 ℂfld |
| 2 | 1 | eqcomi 2631 |
. . . . . 6
Poly1 ℂfld
 |
| 3 | 2 | fveq2i 6194 |
. . . . 5
mulGrp Poly1 ℂfld mulGrp   |
| 4 | | cytpval.q |
. . . . 5
mulGrp   |
| 5 | 3, 4 | eqtr4i 2647 |
. . . 4
mulGrp Poly1 ℂfld  |
| 6 | 5 | a1i 11 |
. . 3
 mulGrp Poly1 ℂfld   |
| 7 | | cytpval.o |
. . . . . . . 8
     |
| 8 | | cytpval.t |
. . . . . . . . 9
 mulGrp ℂfld
↾s       |
| 9 | 8 | fveq2i 6194 |
. . . . . . . 8
        mulGrp ℂfld
↾s        |
| 10 | 7, 9 | eqtri 2644 |
. . . . . . 7
    mulGrp ℂfld
↾s        |
| 11 | 10 | cnveqi 5297 |
. . . . . 6
      mulGrp ℂfld
↾s        |
| 12 | 11 | imaeq1i 5463 |
. . . . 5
             mulGrp ℂfld
↾s             |
| 13 | | sneq 4187 |
. . . . . 6
  
    |
| 14 | 13 | imaeq2d 5466 |
. . . . 5
                 |
| 15 | 12, 14 | syl5eqr 2670 |
. . . 4
       mulGrp ℂfld
↾s                     |
| 16 | | cytpval.x |
. . . . . . 7
var1 ℂfld |
| 17 | | cytpval.a |
. . . . . . . . 9
algSc   |
| 18 | 1 | fveq2i 6194 |
. . . . . . . . 9
algSc  algSc Poly1 ℂfld  |
| 19 | 17, 18 | eqtri 2644 |
. . . . . . . 8
algSc Poly1 ℂfld  |
| 20 | 19 | fveq1i 6192 |
. . . . . . 7
     algSc Poly1 ℂfld     |
| 21 | | cytpval.m |
. . . . . . . 8
     |
| 22 | 1 | fveq2i 6194 |
. . . . . . . 8
       Poly1 ℂfld  |
| 23 | 21, 22 | eqtri 2644 |
. . . . . . 7
   Poly1 ℂfld  |
| 24 | 16, 20, 23 | oveq123i 6664 |
. . . . . 6
       var1 ℂfld    Poly1 ℂfld   algSc Poly1 ℂfld      |
| 25 | 24 | eqcomi 2631 |
. . . . 5
 var1 ℂfld    Poly1 ℂfld   algSc Poly1 ℂfld            |
| 26 | 25 | a1i 11 |
. . . 4
  var1 ℂfld    Poly1 ℂfld   algSc Poly1 ℂfld             |
| 27 | 15, 26 | mpteq12dv 4733 |
. . 3
        mulGrp ℂfld
↾s             var1 ℂfld    Poly1 ℂfld   algSc Poly1 ℂfld                       |
| 28 | 6, 27 | oveq12d 6668 |
. 2
  mulGrp Poly1 ℂfld g        mulGrp ℂfld
↾s             var1 ℂfld    Poly1 ℂfld   algSc Poly1 ℂfld        g                   |
| 29 | | df-cytp 37781 |
. 2
CytP   mulGrp Poly1 ℂfld g        mulGrp ℂfld
↾s             var1 ℂfld    Poly1 ℂfld   algSc Poly1 ℂfld         |
| 30 | | ovex 6678 |
. 2
 g                  |
| 31 | 28, 29, 30 | fvmpt 6282 |
1
 CytP   g                   |