| Step | Hyp | Ref
| Expression |
| 1 | | fta1.3 |
. . . . . . . . . 10
  Poly        |
| 2 | | eldifsn 4317 |
. . . . . . . . . 10
  Poly 
   
 Poly 
    |
| 3 | 1, 2 | sylib 208 |
. . . . . . . . 9
  Poly      |
| 4 | 3 | simpld 475 |
. . . . . . . 8
 Poly    |
| 5 | | fta1.5 |
. . . . . . . . . 10
          |
| 6 | | plyf 23954 |
. . . . . . . . . . 11
 Poly        |
| 7 | | ffn 6045 |
. . . . . . . . . . 11
       |
| 8 | | fniniseg 6338 |
. . . . . . . . . . 11
 
                |
| 9 | 4, 6, 7, 8 | 4syl 19 |
. . . . . . . . . 10
        
         |
| 10 | 5, 9 | mpbid 222 |
. . . . . . . . 9
         |
| 11 | 10 | simpld 475 |
. . . . . . . 8
   |
| 12 | 10 | simprd 479 |
. . . . . . . 8
       |
| 13 | | eqid 2622 |
. . . . . . . . 9
   
             |
| 14 | 13 | facth 24061 |
. . . . . . . 8
  Poly 
         
      quot             |
| 15 | 4, 11, 12, 14 | syl3anc 1326 |
. . . . . . 7
            quot             |
| 16 | 15 | cnveqd 5298 |
. . . . . 6
 
            quot             |
| 17 | 16 | imaeq1d 5465 |
. . . . 5
                     quot                  |
| 18 | | cnex 10017 |
. . . . . . 7
 |
| 19 | 18 | a1i 11 |
. . . . . 6
   |
| 20 | | ssid 3624 |
. . . . . . . . 9
 |
| 21 | | ax-1cn 9994 |
. . . . . . . . 9
 |
| 22 | | plyid 23965 |
. . . . . . . . 9
 
 
Poly    |
| 23 | 20, 21, 22 | mp2an 708 |
. . . . . . . 8
 Poly   |
| 24 | | plyconst 23962 |
. . . . . . . . 9
 
     Poly    |
| 25 | 20, 11, 24 | sylancr 695 |
. . . . . . . 8
     Poly    |
| 26 | | plysubcl 23978 |
. . . . . . . 8
   Poly      Poly           Poly    |
| 27 | 23, 25, 26 | sylancr 695 |
. . . . . . 7
         Poly    |
| 28 | | plyf 23954 |
. . . . . . 7
         Poly                |
| 29 | 27, 28 | syl 17 |
. . . . . 6
               |
| 30 | 13 | plyremlem 24059 |
. . . . . . . . . . . 12
          Poly  deg                              |
| 31 | 11, 30 | syl 17 |
. . . . . . . . . . 11
          Poly  deg                              |
| 32 | 31 | simp2d 1074 |
. . . . . . . . . 10
 deg            |
| 33 | | ax-1ne0 10005 |
. . . . . . . . . . 11
 |
| 34 | 33 | a1i 11 |
. . . . . . . . . 10
   |
| 35 | 32, 34 | eqnetrd 2861 |
. . . . . . . . 9
 deg            |
| 36 | | fveq2 6191 |
. . . . . . . . . . 11
          deg          deg     |
| 37 | | dgr0 24018 |
. . . . . . . . . . 11
deg    |
| 38 | 36, 37 | syl6eq 2672 |
. . . . . . . . . 10
          deg            |
| 39 | 38 | necon3i 2826 |
. . . . . . . . 9
 deg         
           |
| 40 | 35, 39 | syl 17 |
. . . . . . . 8
            |
| 41 | | quotcl2 24057 |
. . . . . . . 8
  Poly 
        Poly             quot          Poly    |
| 42 | 4, 27, 40, 41 | syl3anc 1326 |
. . . . . . 7
  quot    
     Poly    |
| 43 | | plyf 23954 |
. . . . . . 7
  quot          Poly   quot    
           |
| 44 | 42, 43 | syl 17 |
. . . . . 6
  quot    
           |
| 45 | | ofmulrt 24037 |
. . . . . 6
               quot                            quot                                   quot    
             |
| 46 | 19, 29, 44, 45 | syl3anc 1326 |
. . . . 5
              quot                                   quot                  |
| 47 | 31 | simp3d 1075 |
. . . . . 6
      
             |
| 48 | 47 | uneq1d 3766 |
. . . . 5
                    quot    
                 quot                  |
| 49 | 17, 46, 48 | 3eqtrd 2660 |
. . . 4
          
  
quot                  |
| 50 | | fta1.1 |
. . . 4
        |
| 51 | | uncom 3757 |
. . . 4
    quot                        quot                 |
| 52 | 49, 50, 51 | 3eqtr4g 2681 |
. . 3
     quot                    |
| 53 | 3 | simprd 479 |
. . . . . . . . 9
    |
| 54 | 15 | eqcomd 2628 |
. . . . . . . . 9
            quot             |
| 55 | | 0cnd 10033 |
. . . . . . . . . . 11
   |
| 56 | | mul01 10215 |
. . . . . . . . . . . 12
     |
| 57 | 56 | adantl 482 |
. . . . . . . . . . 11
 

    |
| 58 | 19, 29, 55, 55, 57 | caofid1 6927 |
. . . . . . . . . 10
                      |
| 59 | | df-0p 23437 |
. . . . . . . . . . 11

     |
| 60 | 59 | oveq2i 6661 |
. . . . . . . . . 10
                            |
| 61 | 58, 60, 59 | 3eqtr4g 2681 |
. . . . . . . . 9
                |
| 62 | 53, 54, 61 | 3netr4d 2871 |
. . . . . . . 8
            quot                         |
| 63 | | oveq2 6658 |
. . . . . . . . 9
  quot                      quot                         |
| 64 | 63 | necon3i 2826 |
. . . . . . . 8
            quot                        quot             |
| 65 | 62, 64 | syl 17 |
. . . . . . 7
  quot    
        |
| 66 | | eldifsn 4317 |
. . . . . . 7
  quot           Poly     
  quot          Poly   quot    
         |
| 67 | 42, 65, 66 | sylanbrc 698 |
. . . . . 6
  quot    
      Poly 
      |
| 68 | | fta1.6 |
. . . . . 6
   Poly        deg                     deg      |
| 69 | 21 | a1i 11 |
. . . . . . 7
   |
| 70 | | dgrcl 23989 |
. . . . . . . . 9
  quot          Poly  deg  quot             |
| 71 | 42, 70 | syl 17 |
. . . . . . . 8
 deg  quot             |
| 72 | 71 | nn0cnd 11353 |
. . . . . . 7
 deg  quot             |
| 73 | | fta1.2 |
. . . . . . . 8
   |
| 74 | 73 | nn0cnd 11353 |
. . . . . . 7
   |
| 75 | | addcom 10222 |
. . . . . . . . 9
 
       |
| 76 | 21, 74, 75 | sylancr 695 |
. . . . . . . 8
       |
| 77 | 15 | fveq2d 6195 |
. . . . . . . . 9
 deg  deg            quot              |
| 78 | | fta1.4 |
. . . . . . . . 9
 deg      |
| 79 | | eqid 2622 |
. . . . . . . . . . 11
deg          deg           |
| 80 | | eqid 2622 |
. . . . . . . . . . 11
deg 
quot           deg  quot            |
| 81 | 79, 80 | dgrmul 24026 |
. . . . . . . . . 10
           Poly              quot          Poly   quot    
       
deg            quot             deg          deg 
quot              |
| 82 | 27, 40, 42, 65, 81 | syl22anc 1327 |
. . . . . . . . 9
 deg            quot             deg          deg  quot              |
| 83 | 77, 78, 82 | 3eqtr3d 2664 |
. . . . . . . 8
    deg          deg  quot              |
| 84 | 32 | oveq1d 6665 |
. . . . . . . 8
  deg          deg 
quot             deg  quot              |
| 85 | 76, 83, 84 | 3eqtrrd 2661 |
. . . . . . 7
  deg  quot                |
| 86 | 69, 72, 74, 85 | addcanad 10241 |
. . . . . 6
 deg  quot             |
| 87 | | fveq2 6191 |
. . . . . . . . 9
  quot         
deg  deg 
quot             |
| 88 | 87 | eqeq1d 2624 |
. . . . . . . 8
  quot         
 deg  deg  quot              |
| 89 | | cnveq 5296 |
. . . . . . . . . . 11
  quot         
   quot            |
| 90 | 89 | imaeq1d 5465 |
. . . . . . . . . 10
  quot         
          quot    
            |
| 91 | 90 | eleq1d 2686 |
. . . . . . . . 9
  quot         
           quot                  |
| 92 | 90 | fveq2d 6195 |
. . . . . . . . . 10
  quot         
                 quot                  |
| 93 | 92, 87 | breq12d 4666 |
. . . . . . . . 9
  quot         
            deg 
      quot                deg  quot              |
| 94 | 91, 93 | anbi12d 747 |
. . . . . . . 8
  quot         
                    deg  
    quot                     quot                deg  quot               |
| 95 | 88, 94 | imbi12d 334 |
. . . . . . 7
  quot         
  deg 
       
           deg   
 deg  quot    
          quot                     quot               
deg  quot                |
| 96 | 95 | rspcv 3305 |
. . . . . 6
  quot           Poly       
 Poly        deg                     deg     deg  quot               quot                     quot               
deg  quot                |
| 97 | 67, 68, 86, 96 | syl3c 66 |
. . . . 5
     quot                     quot               
deg  quot              |
| 98 | 97 | simpld 475 |
. . . 4
    quot                 |
| 99 | | snfi 8038 |
. . . 4
 
 |
| 100 | | unfi 8227 |
. . . 4
     quot                
     quot    
               |
| 101 | 98, 99, 100 | sylancl 694 |
. . 3
     quot                    |
| 102 | 52, 101 | eqeltrd 2701 |
. 2
   |
| 103 | 52 | fveq2d 6195 |
. . 3
            quot                     |
| 104 | | hashcl 13147 |
. . . . . 6
     quot                         quot                     |
| 105 | 101, 104 | syl 17 |
. . . . 5
        quot                     |
| 106 | 105 | nn0red 11352 |
. . . 4
        quot                     |
| 107 | | hashcl 13147 |
. . . . . . 7
    quot                     quot                  |
| 108 | 98, 107 | syl 17 |
. . . . . 6
       quot                  |
| 109 | 108 | nn0red 11352 |
. . . . 5
       quot                  |
| 110 | | peano2re 10209 |
. . . . 5
      
quot                       quot                   |
| 111 | 109, 110 | syl 17 |
. . . 4
        quot                   |
| 112 | | dgrcl 23989 |
. . . . . 6
 Poly  deg    |
| 113 | 4, 112 | syl 17 |
. . . . 5
 deg    |
| 114 | 113 | nn0red 11352 |
. . . 4
 deg    |
| 115 | | hashun2 13172 |
. . . . . 6
     quot                
        quot                          quot    
                    |
| 116 | 98, 99, 115 | sylancl 694 |
. . . . 5
        quot                          quot    
                    |
| 117 | | hashsng 13159 |
. . . . . . 7
         |
| 118 | 11, 117 | syl 17 |
. . . . . 6
         |
| 119 | 118 | oveq2d 6666 |
. . . . 5
        quot                              quot                   |
| 120 | 116, 119 | breqtrd 4679 |
. . . 4
        quot                          quot    
              |
| 121 | 73 | nn0red 11352 |
. . . . . 6
   |
| 122 | | 1red 10055 |
. . . . . 6
   |
| 123 | 97 | simprd 479 |
. . . . . . 7
       quot                deg  quot             |
| 124 | 123, 86 | breqtrd 4679 |
. . . . . 6
       quot                  |
| 125 | 109, 121,
122, 124 | leadd1dd 10641 |
. . . . 5
        quot                 
   |
| 126 | 125, 78 | breqtrrd 4681 |
. . . 4
        quot                 deg    |
| 127 | 106, 111,
114, 120, 126 | letrd 10194 |
. . 3
        quot                   deg    |
| 128 | 103, 127 | eqbrtrd 4675 |
. 2
    
deg    |
| 129 | 102, 128 | jca 554 |
1
     
deg     |