Proof of Theorem lcmfunsnlem2
| Step | Hyp | Ref
| Expression |
| 1 | | nfv 1843 |
. . 3
  
  |
| 2 | | nfv 1843 |
. . . 4
  
  lcm    |
| 3 | | nfra1 2941 |
. . . 4
  
lcm       lcm  lcm   |
| 4 | 2, 3 | nfan 1828 |
. . 3
     
lcm   
lcm       lcm  lcm    |
| 5 | 1, 4 | nfan 1828 |
. 2
        
lcm   
lcm       lcm  lcm     |
| 6 | | 0z 11388 |
. . . . 5
 |
| 7 | | eqoreldif 4225 |
. . . . 5
 
         |
| 8 | 6, 7 | ax-mp 5 |
. . . 4

        |
| 9 | | simp2 1062 |
. . . . . . . . . . . . 13
     |
| 10 | | snssi 4339 |
. . . . . . . . . . . . . 14
  
  |
| 11 | 10 | 3ad2ant1 1082 |
. . . . . . . . . . . . 13
    
  |
| 12 | 9, 11 | unssd 3789 |
. . . . . . . . . . . 12
         |
| 13 | | snssi 4339 |
. . . . . . . . . . . . 13
  
  |
| 14 | 6, 13 | mp1i 13 |
. . . . . . . . . . . 12
    
  |
| 15 | 12, 14 | unssd 3789 |
. . . . . . . . . . 11
             |
| 16 | | c0ex 10034 |
. . . . . . . . . . . . . 14
 |
| 17 | 16 | snid 4208 |
. . . . . . . . . . . . 13
   |
| 18 | 17 | olci 406 |
. . . . . . . . . . . 12
         |
| 19 | | elun 3753 |
. . . . . . . . . . . 12
        
          |
| 20 | 18, 19 | mpbir 221 |
. . . . . . . . . . 11
         |
| 21 | | lcmf0val 15335 |
. . . . . . . . . . 11
         
         lcm            |
| 22 | 15, 20, 21 | sylancl 694 |
. . . . . . . . . 10
   lcm            |
| 23 | 22 | adantr 481 |
. . . . . . . . 9
  
  lcm            |
| 24 | | sneq 4187 |
. . . . . . . . . . . 12
  
    |
| 25 | 24 | adantl 482 |
. . . . . . . . . . 11
  
        |
| 26 | 25 | uneq2d 3767 |
. . . . . . . . . 10
  
                    |
| 27 | 26 | fveq2d 6195 |
. . . . . . . . 9
  
  lcm          lcm            |
| 28 | | oveq2 6658 |
. . . . . . . . . 10
  lcm      lcm   lcm      lcm    |
| 29 | | snfi 8038 |
. . . . . . . . . . . . . . 15
   |
| 30 | | unfi 8227 |
. . . . . . . . . . . . . . 15
           |
| 31 | 29, 30 | mpan2 707 |
. . . . . . . . . . . . . 14
       |
| 32 | 31 | 3ad2ant3 1084 |
. . . . . . . . . . . . 13
         |
| 33 | | lcmfcl 15341 |
. . . . . . . . . . . . 13
           lcm        |
| 34 | 12, 32, 33 | syl2anc 693 |
. . . . . . . . . . . 12
   lcm        |
| 35 | 34 | nn0zd 11480 |
. . . . . . . . . . 11
   lcm        |
| 36 | | lcm0val 15307 |
. . . . . . . . . . 11
 lcm       lcm      lcm    |
| 37 | 35, 36 | syl 17 |
. . . . . . . . . 10
    lcm      lcm    |
| 38 | 28, 37 | sylan9eqr 2678 |
. . . . . . . . 9
  
   lcm      lcm    |
| 39 | 23, 27, 38 | 3eqtr4d 2666 |
. . . . . . . 8
  
  lcm           lcm      lcm    |
| 40 | 39 | ex 450 |
. . . . . . 7
    lcm           lcm      lcm     |
| 41 | 40 | adantr 481 |
. . . . . 6
  
  
  lcm   
lcm       lcm  lcm   
 lcm           lcm      lcm     |
| 42 | 41 | com12 32 |
. . . . 5
        
lcm   
lcm       lcm  lcm   
lcm           lcm      lcm     |
| 43 | 9 | adantl 482 |
. . . . . . . . . . . . . . 15
        
 
  |
| 44 | 11 | adantl 482 |
. . . . . . . . . . . . . . 15
        
      |
| 45 | 43, 44 | unssd 3789 |
. . . . . . . . . . . . . 14
        
        |
| 46 | | elun1 3780 |
. . . . . . . . . . . . . . 15
       |
| 47 | 46 | ad2antrr 762 |
. . . . . . . . . . . . . 14
        
        |
| 48 | | lcmf0val 15335 |
. . . . . . . . . . . . . 14
           lcm        |
| 49 | 45, 47, 48 | syl2anc 693 |
. . . . . . . . . . . . 13
        
  lcm        |
| 50 | 49 | oveq2d 6666 |
. . . . . . . . . . . 12
        
   lcm lcm        lcm    |
| 51 | | eldifi 3732 |
. . . . . . . . . . . . . 14
       |
| 52 | | lcm0val 15307 |
. . . . . . . . . . . . . 14
  lcm    |
| 53 | 51, 52 | syl 17 |
. . . . . . . . . . . . 13
      lcm    |
| 54 | 53 | ad2antlr 763 |
. . . . . . . . . . . 12
        
   lcm    |
| 55 | 50, 54 | eqtrd 2656 |
. . . . . . . . . . 11
        
   lcm lcm         |
| 56 | | simp3 1063 |
. . . . . . . . . . . . . . 15
     |
| 57 | 56, 29, 30 | sylancl 694 |
. . . . . . . . . . . . . 14
         |
| 58 | 12, 57, 33 | syl2anc 693 |
. . . . . . . . . . . . 13
   lcm        |
| 59 | 58 | nn0zd 11480 |
. . . . . . . . . . . 12
   lcm        |
| 60 | 51 | adantl 482 |
. . . . . . . . . . . 12
 
    
  |
| 61 | | lcmcom 15306 |
. . . . . . . . . . . 12
  lcm     
  lcm      lcm   lcm lcm         |
| 62 | 59, 60, 61 | syl2anr 495 |
. . . . . . . . . . 11
        
   lcm      lcm   lcm lcm         |
| 63 | 12 | adantl 482 |
. . . . . . . . . . . . 13
        
        |
| 64 | 51 | snssd 4340 |
. . . . . . . . . . . . . 14
         |
| 65 | 64 | ad2antlr 763 |
. . . . . . . . . . . . 13
        
      |
| 66 | 63, 65 | unssd 3789 |
. . . . . . . . . . . 12
        
         
  |
| 67 | 46 | orcd 407 |
. . . . . . . . . . . . . 14
           |
| 68 | | elun 3753 |
. . . . . . . . . . . . . 14
        
          |
| 69 | 67, 68 | sylibr 224 |
. . . . . . . . . . . . 13
           |
| 70 | 69 | ad2antrr 762 |
. . . . . . . . . . . 12
        
            |
| 71 | | lcmf0val 15335 |
. . . . . . . . . . . 12
         
         lcm            |
| 72 | 66, 70, 71 | syl2anc 693 |
. . . . . . . . . . 11
        
  lcm            |
| 73 | 55, 62, 72 | 3eqtr4rd 2667 |
. . . . . . . . . 10
        
  lcm           lcm      lcm    |
| 74 | 73 | a1d 25 |
. . . . . . . . 9
        
      
lcm   
lcm       lcm  lcm   lcm           lcm      lcm     |
| 75 | 74 | ex 450 |
. . . . . . . 8
 
    
       
lcm   
lcm       lcm  lcm   lcm           lcm      lcm      |
| 76 | 75 | impd 447 |
. . . . . . 7
 
    
  
  
  lcm   
lcm       lcm  lcm   
lcm           lcm      lcm     |
| 77 | 76 | ex 450 |
. . . . . 6
     
  
  
  lcm   
lcm       lcm  lcm   
lcm           lcm      lcm      |
| 78 | | elsng 4191 |
. . . . . . . . . . . . . . . . . . . 20
       |
| 79 | | eqcom 2629 |
. . . . . . . . . . . . . . . . . . . 20

  |
| 80 | 78, 79 | syl6bb 276 |
. . . . . . . . . . . . . . . . . . 19
       |
| 81 | 6, 80 | ax-mp 5 |
. . . . . . . . . . . . . . . . . 18
     |
| 82 | 81 | biimpri 218 |
. . . . . . . . . . . . . . . . 17
     |
| 83 | 82 | ad2antrr 762 |
. . . . . . . . . . . . . . . 16
        
      |
| 84 | 83 | olcd 408 |
. . . . . . . . . . . . . . 15
        
        |
| 85 | | elun 3753 |
. . . . . . . . . . . . . . 15
           |
| 86 | 84, 85 | sylibr 224 |
. . . . . . . . . . . . . 14
        
        |
| 87 | 12, 86, 48 | syl2an2 875 |
. . . . . . . . . . . . 13
        
  lcm        |
| 88 | 87 | oveq2d 6666 |
. . . . . . . . . . . 12
        
   lcm lcm        lcm    |
| 89 | 51 | ad2antlr 763 |
. . . . . . . . . . . . 13
        
 
  |
| 90 | 89, 52 | syl 17 |
. . . . . . . . . . . 12
        
   lcm    |
| 91 | 88, 90 | eqtrd 2656 |
. . . . . . . . . . 11
        
   lcm lcm         |
| 92 | 59, 89, 61 | syl2an2 875 |
. . . . . . . . . . 11
        
   lcm      lcm   lcm lcm         |
| 93 | 12 | adantl 482 |
. . . . . . . . . . . . 13
        
        |
| 94 | 64 | ad2antlr 763 |
. . . . . . . . . . . . 13
        
      |
| 95 | 93, 94 | unssd 3789 |
. . . . . . . . . . . 12
        
         
  |
| 96 | | sneq 4187 |
. . . . . . . . . . . . . . . . . 18
       |
| 97 | 17, 96 | syl5eleqr 2708 |
. . . . . . . . . . . . . . . . 17
     |
| 98 | 97 | ad2antrr 762 |
. . . . . . . . . . . . . . . 16
        
      |
| 99 | 98 | olcd 408 |
. . . . . . . . . . . . . . 15
        
        |
| 100 | 99, 85 | sylibr 224 |
. . . . . . . . . . . . . 14
        
        |
| 101 | 100 | orcd 407 |
. . . . . . . . . . . . 13
        
            |
| 102 | 101, 68 | sylibr 224 |
. . . . . . . . . . . 12
        
            |
| 103 | 95, 102, 71 | syl2anc 693 |
. . . . . . . . . . 11
        
  lcm            |
| 104 | 91, 92, 103 | 3eqtr4rd 2667 |
. . . . . . . . . 10
        
  lcm           lcm      lcm    |
| 105 | 104 | a1d 25 |
. . . . . . . . 9
        
      
lcm   
lcm       lcm  lcm   lcm           lcm      lcm     |
| 106 | 105 | ex 450 |
. . . . . . . 8
        
     
lcm   
lcm       lcm  lcm   lcm           lcm      lcm      |
| 107 | 106 | impd 447 |
. . . . . . 7
              
lcm   
lcm       lcm  lcm   
lcm           lcm      lcm     |
| 108 | 107 | ex 450 |
. . . . . 6
     
  
  
  lcm   
lcm       lcm  lcm   
lcm           lcm      lcm      |
| 109 | | ioran 511 |
. . . . . . . 8
   
   |
| 110 | | df-nel 2898 |
. . . . . . . . 9

  |
| 111 | | df-ne 2795 |
. . . . . . . . 9

  |
| 112 | 110, 111 | anbi12i 733 |
. . . . . . . 8
  

   |
| 113 | 109, 112 | bitr4i 267 |
. . . . . . 7
       |
| 114 | | eldif 3584 |
. . . . . . . 8
           |
| 115 | | velsn 4193 |
. . . . . . . . . . . . 13
     |
| 116 | 115 | bicomi 214 |
. . . . . . . . . . . 12

    |
| 117 | 116 | necon3abii 2840 |
. . . . . . . . . . 11

    |
| 118 | | lcmfunsnlem2lem2 15352 |
. . . . . . . . . . . . 13
  

     
  lcm   
lcm       lcm  lcm      lcm           lcm      lcm    |
| 119 | 118 | exp520 1288 |
. . . . . . . . . . . 12
         
  lcm   
lcm       lcm  lcm   
lcm           lcm      lcm        |
| 120 | 119 | imp 445 |
. . . . . . . . . . 11
          
  lcm   
lcm       lcm  lcm   
lcm           lcm      lcm       |
| 121 | 117, 120 | syl5bir 233 |
. . . . . . . . . 10
              
lcm   
lcm       lcm  lcm   
lcm           lcm      lcm       |
| 122 | 121 | com23 86 |
. . . . . . . . 9
              
lcm   
lcm       lcm  lcm   
lcm           lcm      lcm       |
| 123 | 122 | impd 447 |
. . . . . . . 8
             
  lcm   
lcm       lcm  lcm   
lcm           lcm      lcm      |
| 124 | 114, 123 | syl5bi 232 |
. . . . . . 7
               
lcm   
lcm       lcm  lcm   
lcm           lcm      lcm      |
| 125 | 113, 124 | sylbi 207 |
. . . . . 6
  
          
  lcm   
lcm       lcm  lcm   
lcm           lcm      lcm      |
| 126 | 77, 108, 125 | ecase3 982 |
. . . . 5
          
  lcm   
lcm       lcm  lcm   
lcm           lcm      lcm     |
| 127 | 42, 126 | jaoi 394 |
. . . 4
              
lcm   
lcm       lcm  lcm   
lcm           lcm      lcm     |
| 128 | 8, 127 | sylbi 207 |
. . 3
        
lcm   
lcm       lcm  lcm   
lcm           lcm      lcm     |
| 129 | 128 | com12 32 |
. 2
  
  
  lcm   
lcm       lcm  lcm   

lcm           lcm      lcm     |
| 130 | 5, 129 | ralrimi 2957 |
1
  
  
  lcm   
lcm       lcm  lcm   
 lcm           lcm      lcm    |