| Step | Hyp | Ref
| Expression |
| 1 | | simpl1 1064 |
. . . . . . . 8
       mPwSer  
    mPwSer                |
| 2 | | eqid 2622 |
. . . . . . . . . . 11
 mPwSer   mPwSer   |
| 3 | | eqid 2622 |
. . . . . . . . . . 11
         |
| 4 | | eqid 2622 |
. . . . . . . . . . 11
       
           |
| 5 | | eqid 2622 |
. . . . . . . . . . 11
    mPwSer       mPwSer    |
| 6 | | simp2 1062 |
. . . . . . . . . . 11
 
    mPwSer       mPwSer        mPwSer     |
| 7 | 2, 3, 4, 5, 6 | psrelbas 19379 |
. . . . . . . . . 10
 
    mPwSer       mPwSer             
         |
| 8 | 7 | ffvelrnda 6359 |
. . . . . . . . 9
       mPwSer  
    mPwSer                        |
| 9 | | psrplusgpropd.b1 |
. . . . . . . . . 10
       |
| 10 | 1, 9 | syl 17 |
. . . . . . . . 9
       mPwSer  
    mPwSer                    |
| 11 | 8, 10 | eleqtrrd 2704 |
. . . . . . . 8
       mPwSer  
    mPwSer                    |
| 12 | | simp3 1063 |
. . . . . . . . . . 11
 
    mPwSer       mPwSer        mPwSer     |
| 13 | 2, 3, 4, 5, 12 | psrelbas 19379 |
. . . . . . . . . 10
 
    mPwSer       mPwSer             
         |
| 14 | 13 | ffvelrnda 6359 |
. . . . . . . . 9
       mPwSer  
    mPwSer                        |
| 15 | 14, 10 | eleqtrrd 2704 |
. . . . . . . 8
       mPwSer  
    mPwSer                    |
| 16 | | psrplusgpropd.p |
. . . . . . . . 9
 

                  |
| 17 | 16 | oveqrspc2v 6673 |
. . . . . . . 8
 
    
                                      |
| 18 | 1, 11, 15, 17 | syl12anc 1324 |
. . . . . . 7
       mPwSer  
    mPwSer                                              |
| 19 | 18 | mpteq2dva 4744 |
. . . . . 6
 
    mPwSer       mPwSer             
                         
                  |
| 20 | | ffn 6045 |
. . . . . . . 8
                             |
| 21 | 7, 20 | syl 17 |
. . . . . . 7
 
    mPwSer       mPwSer           
   |
| 22 | | ffn 6045 |
. . . . . . . 8
                             |
| 23 | 13, 22 | syl 17 |
. . . . . . 7
 
    mPwSer       mPwSer           
   |
| 24 | | ovex 6678 |
. . . . . . . . 9
   |
| 25 | 24 | rabex 4813 |
. . . . . . . 8
       
  |
| 26 | 25 | a1i 11 |
. . . . . . 7
 
    mPwSer       mPwSer               |
| 27 | | inidm 3822 |
. . . . . . 7
        
                     |
| 28 | | eqidd 2623 |
. . . . . . 7
       mPwSer  
    mPwSer                        |
| 29 | | eqidd 2623 |
. . . . . . 7
       mPwSer  
    mPwSer                        |
| 30 | 21, 23, 26, 26, 27, 28, 29 | offval 6904 |
. . . . . 6
 
    mPwSer       mPwSer                    
                   |
| 31 | 21, 23, 26, 26, 27, 28, 29 | offval 6904 |
. . . . . 6
 
    mPwSer       mPwSer                    
                   |
| 32 | 19, 30, 31 | 3eqtr4d 2666 |
. . . . 5
 
    mPwSer       mPwSer                      |
| 33 | 32 | mpt2eq3dva 6719 |
. . . 4
      mPwSer        mPwSer                 mPwSer        mPwSer              |
| 34 | | psrplusgpropd.b2 |
. . . . . . 7
       |
| 35 | 9, 34 | eqtr3d 2658 |
. . . . . 6
           |
| 36 | 35 | psrbaspropd 19605 |
. . . . 5
     mPwSer       mPwSer     |
| 37 | | mpt2eq12 6715 |
. . . . 5
      mPwSer       mPwSer       mPwSer       mPwSer         mPwSer        mPwSer                 mPwSer        mPwSer              |
| 38 | 36, 36, 37 | syl2anc 693 |
. . . 4
      mPwSer        mPwSer                 mPwSer        mPwSer              |
| 39 | 33, 38 | eqtrd 2656 |
. . 3
      mPwSer        mPwSer                 mPwSer        mPwSer              |
| 40 | | ofmres 7164 |
. . 3
          mPwSer       mPwSer          mPwSer        mPwSer             |
| 41 | | ofmres 7164 |
. . 3
          mPwSer       mPwSer          mPwSer        mPwSer             |
| 42 | 39, 40, 41 | 3eqtr4g 2681 |
. 2
           mPwSer       mPwSer               mPwSer       mPwSer       |
| 43 | | eqid 2622 |
. . 3
       |
| 44 | | eqid 2622 |
. . 3
   mPwSer      mPwSer    |
| 45 | 2, 5, 43, 44 | psrplusg 19381 |
. 2
   mPwSer             mPwSer       mPwSer      |
| 46 | | eqid 2622 |
. . 3
 mPwSer   mPwSer   |
| 47 | | eqid 2622 |
. . 3
    mPwSer       mPwSer    |
| 48 | | eqid 2622 |
. . 3
       |
| 49 | | eqid 2622 |
. . 3
   mPwSer      mPwSer    |
| 50 | 46, 47, 48, 49 | psrplusg 19381 |
. 2
   mPwSer             mPwSer       mPwSer      |
| 51 | 42, 45, 50 | 3eqtr4g 2681 |
1
    mPwSer      mPwSer     |