| Step | Hyp | Ref
| Expression |
| 1 | | gsumwspan.b |
. . . . . 6
     |
| 2 | 1 | submacs 17365 |
. . . . 5
 SubMnd  ACS    |
| 3 | 2 | acsmred 16317 |
. . . 4
 SubMnd  Moore    |
| 4 | 3 | adantr 481 |
. . 3
   SubMnd  Moore    |
| 5 | | simpr 477 |
. . . . . . . 8
  


  |
| 6 | 5 | s1cld 13383 |
. . . . . . 7
  


    Word
  |
| 7 | | ssel2 3598 |
. . . . . . . . . 10
 
   |
| 8 | 7 | adantll 750 |
. . . . . . . . 9
  


  |
| 9 | 1 | gsumws1 17376 |
. . . . . . . . 9
  g     
  |
| 10 | 8, 9 | syl 17 |
. . . . . . . 8
  


 g     
  |
| 11 | 10 | eqcomd 2628 |
. . . . . . 7
  



g        |
| 12 | | oveq2 6658 |
. . . . . . . . 9
    
 g   g        |
| 13 | 12 | eqeq2d 2632 |
. . . . . . . 8
    
  g   g         |
| 14 | 13 | rspcev 3309 |
. . . . . . 7
      Word  g        Word   g    |
| 15 | 6, 11, 14 | syl2anc 693 |
. . . . . 6
  


 Word   g    |
| 16 | | vex 3203 |
. . . . . . 7
 |
| 17 | | eqid 2622 |
. . . . . . . 8
 Word  g    Word  g    |
| 18 | 17 | elrnmpt 5372 |
. . . . . . 7
   Word
 g  
 Word   g     |
| 19 | 16, 18 | ax-mp 5 |
. . . . . 6
  Word  g  
 Word   g    |
| 20 | 15, 19 | sylibr 224 |
. . . . 5
  


 Word  g     |
| 21 | 20 | ex 450 |
. . . 4
     Word
 g      |
| 22 | 21 | ssrdv 3609 |
. . 3
    Word  g     |
| 23 | | gsumwspan.k |
. . . . . . . . . . 11
mrCls SubMnd    |
| 24 | 23 | mrccl 16271 |
. . . . . . . . . 10
  SubMnd  Moore 
     SubMnd    |
| 25 | 3, 24 | sylan 488 |
. . . . . . . . 9
       SubMnd    |
| 26 | 25 | adantr 481 |
. . . . . . . 8
  

Word      SubMnd    |
| 27 | 23 | mrcssid 16277 |
. . . . . . . . . . 11
  SubMnd  Moore 
       |
| 28 | 3, 27 | sylan 488 |
. . . . . . . . . 10
         |
| 29 | | sswrd 13313 |
. . . . . . . . . 10
     Word Word       |
| 30 | 28, 29 | syl 17 |
. . . . . . . . 9
   Word Word       |
| 31 | 30 | sselda 3603 |
. . . . . . . 8
  

Word  Word       |
| 32 | | gsumwsubmcl 17375 |
. . . . . . . 8
      SubMnd  Word       g        |
| 33 | 26, 31, 32 | syl2anc 693 |
. . . . . . 7
  

Word   g        |
| 34 | 33, 17 | fmptd 6385 |
. . . . . 6
    Word  g    Word         |
| 35 | | frn 6053 |
. . . . . 6
  Word  g    Word       
Word  g         |
| 36 | 34, 35 | syl 17 |
. . . . 5
    Word  g         |
| 37 | 3, 23 | mrcssvd 16283 |
. . . . . 6
       |
| 38 | 37 | adantr 481 |
. . . . 5
      
  |
| 39 | 36, 38 | sstrd 3613 |
. . . 4
    Word  g     |
| 40 | | wrd0 13330 |
. . . . . 6
Word  |
| 41 | | eqid 2622 |
. . . . . . . . 9
         |
| 42 | 41 | gsum0 17278 |
. . . . . . . 8
 g       |
| 43 | 42 | eqcomi 2631 |
. . . . . . 7
     g   |
| 44 | 43 | a1i 11 |
. . . . . 6
        g    |
| 45 | | oveq2 6658 |
. . . . . . . 8

 g   g    |
| 46 | 45 | eqeq2d 2632 |
. . . . . . 7

      g       g     |
| 47 | 46 | rspcev 3309 |
. . . . . 6
 
Word      g    Word       g    |
| 48 | 40, 44, 47 | sylancr 695 |
. . . . 5
   
Word       g    |
| 49 | | fvex 6201 |
. . . . . 6
     |
| 50 | 17 | elrnmpt 5372 |
. . . . . 6
           Word
 g  
 Word       g     |
| 51 | 49, 50 | ax-mp 5 |
. . . . 5
      Word  g  
 Word       g    |
| 52 | 48, 51 | sylibr 224 |
. . . 4
        Word
 g     |
| 53 | | ccatcl 13359 |
. . . . . . . . 9
  Word
Word   ++  Word   |
| 54 | 53 | adantl 482 |
. . . . . . . 8
  
  Word
Word  
 ++  Word   |
| 55 | | simpll 790 |
. . . . . . . . . 10
  
  Word
Word  
  |
| 56 | | sswrd 13313 |
. . . . . . . . . . . 12
 Word Word   |
| 57 | 56 | ad2antlr 763 |
. . . . . . . . . . 11
  
  Word
Word  
Word Word   |
| 58 | | simprl 794 |
. . . . . . . . . . 11
  
  Word
Word  
Word   |
| 59 | 57, 58 | sseldd 3604 |
. . . . . . . . . 10
  
  Word
Word  
Word   |
| 60 | | simprr 796 |
. . . . . . . . . . 11
  
  Word
Word  
Word   |
| 61 | 57, 60 | sseldd 3604 |
. . . . . . . . . 10
  
  Word
Word  
Word   |
| 62 | | eqid 2622 |
. . . . . . . . . . 11
       |
| 63 | 1, 62 | gsumccat 17378 |
. . . . . . . . . 10
 
Word Word   g  ++     g        g     |
| 64 | 55, 59, 61, 63 | syl3anc 1326 |
. . . . . . . . 9
  
  Word
Word  
 g  ++     g        g     |
| 65 | 64 | eqcomd 2628 |
. . . . . . . 8
  
  Word
Word  
  g        g    g  ++     |
| 66 | | oveq2 6658 |
. . . . . . . . . 10
  ++ 
 g   g  ++
    |
| 67 | 66 | eqeq2d 2632 |
. . . . . . . . 9
  ++ 
   g        g    g 
  g        g    g  ++      |
| 68 | 67 | rspcev 3309 |
. . . . . . . 8
   ++  Word   g        g    g  ++     Word    g        g    g    |
| 69 | 54, 65, 68 | syl2anc 693 |
. . . . . . 7
  
  Word
Word  
 Word    g        g    g    |
| 70 | | ovex 6678 |
. . . . . . . 8
  g        g    |
| 71 | 17 | elrnmpt 5372 |
. . . . . . . 8
   g        g      g        g    Word  g    Word    g        g    g     |
| 72 | 70, 71 | ax-mp 5 |
. . . . . . 7
   g        g    Word  g    Word    g        g    g    |
| 73 | 69, 72 | sylibr 224 |
. . . . . 6
  
  Word
Word  
  g        g    Word  g     |
| 74 | 73 | ralrimivva 2971 |
. . . . 5
   
Word  
Word    g        g    Word  g     |
| 75 | | oveq2 6658 |
. . . . . . . . 9
  g   g    |
| 76 | 75 | cbvmptv 4750 |
. . . . . . . 8
 Word  g    Word  g    |
| 77 | 76 | rneqi 5352 |
. . . . . . 7
 Word
 g    Word  g    |
| 78 | 77 | raleqi 3142 |
. . . . . 6
 
 Word  g    
 Word  g            Word  g     Word  g    
 Word  g            Word  g     |
| 79 | | oveq2 6658 |
. . . . . . . . . . 11
  g   g    |
| 80 | 79 | cbvmptv 4750 |
. . . . . . . . . 10
 Word  g    Word  g    |
| 81 | 80 | rneqi 5352 |
. . . . . . . . 9
 Word
 g    Word  g    |
| 82 | 81 | raleqi 3142 |
. . . . . . . 8
 
 Word  g            Word  g     Word  g            Word  g     |
| 83 | | eqid 2622 |
. . . . . . . . . 10
 Word  g    Word  g    |
| 84 | | oveq2 6658 |
. . . . . . . . . . 11
  g                g     |
| 85 | 84 | eleq1d 2686 |
. . . . . . . . . 10
  g           Word  g          g    Word  g      |
| 86 | 83, 85 | ralrnmpt 6368 |
. . . . . . . . 9
 
Word   g     Word  g           
Word  g  
 Word         g    Word  g      |
| 87 | | ovexd 6680 |
. . . . . . . . 9
 Word  g    |
| 88 | 86, 87 | mprg 2926 |
. . . . . . . 8
 
 Word  g            Word  g    Word         g    Word  g     |
| 89 | 82, 88 | bitri 264 |
. . . . . . 7
 
 Word  g            Word  g    Word         g    Word  g     |
| 90 | 89 | ralbii 2980 |
. . . . . 6
 
 Word  g    
 Word  g            Word  g     Word  g    
Word         g    Word
 g     |
| 91 | | eqid 2622 |
. . . . . . . 8
 Word  g    Word  g    |
| 92 | | oveq1 6657 |
. . . . . . . . . 10
  g         g     g        g     |
| 93 | 92 | eleq1d 2686 |
. . . . . . . . 9
  g          g    Word
 g  
  g        g    Word  g      |
| 94 | 93 | ralbidv 2986 |
. . . . . . . 8
  g    Word         g    Word  g    Word    g        g    Word
 g      |
| 95 | 91, 94 | ralrnmpt 6368 |
. . . . . . 7
 
Word   g     Word  g     Word         g    Word  g    Word  
Word    g        g    Word  g      |
| 96 | | ovexd 6680 |
. . . . . . 7
 Word  g    |
| 97 | 95, 96 | mprg 2926 |
. . . . . 6
 
 Word  g    
Word         g    Word
 g  
 Word   Word    g        g    Word  g     |
| 98 | 78, 90, 97 | 3bitri 286 |
. . . . 5
 
 Word  g    
 Word  g            Word  g    Word  
Word    g        g    Word  g     |
| 99 | 74, 98 | sylibr 224 |
. . . 4
   

Word  g    
 Word  g            Word  g     |
| 100 | 1, 41, 62 | issubm 17347 |
. . . . 5
   Word  g   SubMnd    Word  g  
     Word  g     Word
 g    
 Word  g            Word  g       |
| 101 | 100 | adantr 481 |
. . . 4
   
 Word  g   SubMnd 
 
Word  g       
Word  g     Word
 g    
 Word  g            Word  g       |
| 102 | 39, 52, 99, 101 | mpbir3and 1245 |
. . 3
    Word  g   SubMnd    |
| 103 | 23 | mrcsscl 16280 |
. . 3
  SubMnd  Moore 
 Word
 g    Word  g   SubMnd  
    
Word  g     |
| 104 | 4, 22, 102, 103 | syl3anc 1326 |
. 2
      
 Word  g     |
| 105 | 104, 36 | eqssd 3620 |
1
        Word
 g     |