| Step | Hyp | Ref
| Expression |
| 1 | | coe1fzgsumd.m |
. 2
 
  |
| 2 | | coe1fzgsumd.n |
. . 3
   |
| 3 | | raleq 3138 |
. . . . . . 7

 
    |
| 4 | 3 | anbi2d 740 |
. . . . . 6

 


      |
| 5 | | mpteq1 4737 |
. . . . . . . . . 10

      |
| 6 | 5 | oveq2d 6666 |
. . . . . . . . 9

 g 
   g      |
| 7 | 6 | fveq2d 6195 |
. . . . . . . 8

coe1  g     coe1  g       |
| 8 | 7 | fveq1d 6193 |
. . . . . . 7

 coe1  g         coe1  g          |
| 9 | | mpteq1 4737 |
. . . . . . . 8

  coe1        coe1        |
| 10 | 9 | oveq2d 6666 |
. . . . . . 7

 g 
 coe1        g   coe1         |
| 11 | 8, 10 | eqeq12d 2637 |
. . . . . 6

  coe1  g         g 
 coe1        coe1  g         g   coe1          |
| 12 | 4, 11 | imbi12d 334 |
. . . . 5

   
  coe1  g         g 
 coe1             coe1  g         g   coe1           |
| 13 | | raleq 3138 |
. . . . . . 7
  

   |
| 14 | 13 | anbi2d 740 |
. . . . . 6
  


 
    |
| 15 | | mpteq1 4737 |
. . . . . . . . . 10
       |
| 16 | 15 | oveq2d 6666 |
. . . . . . . . 9
  g     g      |
| 17 | 16 | fveq2d 6195 |
. . . . . . . 8
 coe1 
g     coe1  g       |
| 18 | 17 | fveq1d 6193 |
. . . . . . 7
  coe1  g         coe1  g          |
| 19 | | mpteq1 4737 |
. . . . . . . 8
   coe1        coe1        |
| 20 | 19 | oveq2d 6666 |
. . . . . . 7
  g   coe1        g   coe1         |
| 21 | 18, 20 | eqeq12d 2637 |
. . . . . 6
   coe1  g         g 
 coe1        coe1  g         g 
 coe1          |
| 22 | 14, 21 | imbi12d 334 |
. . . . 5
       coe1  g         g 
 coe1          
  coe1  g         g 
 coe1           |
| 23 | | raleq 3138 |
. . . . . . 7
      
         |
| 24 | 23 | anbi2d 740 |
. . . . . 6
       
 
          |
| 25 | | mpteq1 4737 |
. . . . . . . . . 10
               |
| 26 | 25 | oveq2d 6666 |
. . . . . . . . 9
      g     g 
        |
| 27 | 26 | fveq2d 6195 |
. . . . . . . 8
     coe1  g     coe1  g           |
| 28 | 27 | fveq1d 6193 |
. . . . . . 7
      coe1  g         coe1  g              |
| 29 | | mpteq1 4737 |
. . . . . . . 8
       coe1            coe1        |
| 30 | 29 | oveq2d 6666 |
. . . . . . 7
      g   coe1        g       coe1         |
| 31 | 28, 30 | eqeq12d 2637 |
. . . . . 6
       coe1  g         g   coe1        coe1  g             g       coe1          |
| 32 | 24, 31 | imbi12d 334 |
. . . . 5
       

  coe1  g         g 
 coe1                  coe1  g             g       coe1           |
| 33 | | raleq 3138 |
. . . . . . 7
  

   |
| 34 | 33 | anbi2d 740 |
. . . . . 6
  


 
    |
| 35 | | mpteq1 4737 |
. . . . . . . . . 10
       |
| 36 | 35 | oveq2d 6666 |
. . . . . . . . 9
  g     g      |
| 37 | 36 | fveq2d 6195 |
. . . . . . . 8
 coe1 
g     coe1  g       |
| 38 | 37 | fveq1d 6193 |
. . . . . . 7
  coe1  g         coe1  g          |
| 39 | | mpteq1 4737 |
. . . . . . . 8
   coe1        coe1        |
| 40 | 39 | oveq2d 6666 |
. . . . . . 7
  g   coe1        g   coe1         |
| 41 | 38, 40 | eqeq12d 2637 |
. . . . . 6
   coe1  g         g 
 coe1        coe1  g         g 
 coe1          |
| 42 | 34, 41 | imbi12d 334 |
. . . . 5
       coe1  g         g 
 coe1          
  coe1  g         g 
 coe1           |
| 43 | | mpt0 6021 |
. . . . . . . . . . . . 13
   |
| 44 | 43 | oveq2i 6661 |
. . . . . . . . . . . 12
 g 
   g   |
| 45 | | eqid 2622 |
. . . . . . . . . . . . 13
         |
| 46 | 45 | gsum0 17278 |
. . . . . . . . . . . 12
 g       |
| 47 | 44, 46 | eqtri 2644 |
. . . . . . . . . . 11
 g 
       |
| 48 | 47 | fveq2i 6194 |
. . . . . . . . . 10
coe1  g     coe1       |
| 49 | 48 | a1i 11 |
. . . . . . . . 9
 coe1  g     coe1        |
| 50 | 49 | fveq1d 6193 |
. . . . . . . 8
  coe1  g         coe1           |
| 51 | | coe1fzgsumd.r |
. . . . . . . . . 10
   |
| 52 | | coe1fzgsumd.p |
. . . . . . . . . . 11
Poly1   |
| 53 | | eqid 2622 |
. . . . . . . . . . 11
         |
| 54 | 52, 45, 53 | coe1z 19633 |
. . . . . . . . . 10

coe1                |
| 55 | 51, 54 | syl 17 |
. . . . . . . . 9
 coe1                |
| 56 | 55 | fveq1d 6193 |
. . . . . . . 8
  coe1                       |
| 57 | | fvex 6201 |
. . . . . . . . 9
     |
| 58 | | coe1fzgsumd.k |
. . . . . . . . 9
   |
| 59 | | fvconst2g 6467 |
. . . . . . . . 9
     
                   |
| 60 | 57, 58, 59 | sylancr 695 |
. . . . . . . 8
                   |
| 61 | 50, 56, 60 | 3eqtrd 2660 |
. . . . . . 7
  coe1  g              |
| 62 | | mpt0 6021 |
. . . . . . . . 9
  coe1       |
| 63 | 62 | oveq2i 6661 |
. . . . . . . 8
 g 
 coe1        g   |
| 64 | 53 | gsum0 17278 |
. . . . . . . 8
 g       |
| 65 | 63, 64 | eqtri 2644 |
. . . . . . 7
 g 
 coe1            |
| 66 | 61, 65 | syl6eqr 2674 |
. . . . . 6
  coe1  g         g   coe1         |
| 67 | 66 | adantr 481 |
. . . . 5
 
 
 coe1 
g         g   coe1         |
| 68 | | coe1fzgsumd.b |
. . . . . . . . 9
     |
| 69 | 52, 68, 51, 58 | coe1fzgsumdlem 19671 |
. . . . . . . 8
 
     coe1  g         g 
 coe1       
 
      coe1  g             g       coe1           |
| 70 | 69 | 3expia 1267 |
. . . . . . 7
 

   
 coe1  g         g   coe1       
 
      coe1  g             g       coe1            |
| 71 | 70 | a2d 29 |
. . . . . 6
 

   
 coe1  g         g   coe1                  coe1  g             g       coe1            |
| 72 | | impexp 462 |
. . . . . 6
   
  coe1  g         g 
 coe1          
 coe1  g         g 
 coe1           |
| 73 | | impexp 462 |
. . . . . 6
   
       coe1  g             g 
     coe1        
 
      coe1  g             g       coe1           |
| 74 | 71, 72, 73 | 3imtr4g 285 |
. . . . 5
 

  

  coe1  g         g 
 coe1       
          coe1  g             g       coe1           |
| 75 | 12, 22, 32, 42, 67, 74 | findcard2s 8201 |
. . . 4
  

  coe1  g         g 
 coe1          |
| 76 | 75 | expd 452 |
. . 3
   
 coe1  g         g   coe1           |
| 77 | 2, 76 | mpcom 38 |
. 2
    coe1  g         g 
 coe1          |
| 78 | 1, 77 | mpd 15 |
1
  coe1  g         g 
 coe1         |