| Intuitionistic Logic Explorer | 
      
      
      < Previous  
      Next >
      
       Nearby theorems  | 
  ||
| Mirrors > Home > ILE Home > Th. List > omsinds | Unicode version | ||
| Description: Strong (or
"total") induction principle over  | 
| Ref | Expression | 
|---|---|
| omsinds.1 | 
 | 
| omsinds.2 | 
 | 
| omsinds.3 | 
 | 
| Ref | Expression | 
|---|---|
| omsinds | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | omsinds.2 | 
. 2
 | |
| 2 | suceq 4437 | 
. . . 4
 | |
| 3 | 2 | raleqdv 2699 | 
. . 3
 | 
| 4 | suceq 4437 | 
. . . 4
 | |
| 5 | 4 | raleqdv 2699 | 
. . 3
 | 
| 6 | suceq 4437 | 
. . . 4
 | |
| 7 | 6 | raleqdv 2699 | 
. . 3
 | 
| 8 | suceq 4437 | 
. . . 4
 | |
| 9 | 8 | raleqdv 2699 | 
. . 3
 | 
| 10 | ral0 3552 | 
. . . . . 6
 | |
| 11 | omsinds.3 | 
. . . . . . . 8
 | |
| 12 | 11 | rgen 2550 | 
. . . . . . 7
 | 
| 13 | peano1 4630 | 
. . . . . . . 8
 | |
| 14 | 10 | nfth 1478 | 
. . . . . . . . . 10
 | 
| 15 | nfsbc1v 3008 | 
. . . . . . . . . 10
 | |
| 16 | 14, 15 | nfim 1586 | 
. . . . . . . . 9
 | 
| 17 | raleq 2693 | 
. . . . . . . . . 10
 | |
| 18 | sbceq1a 2999 | 
. . . . . . . . . 10
 | |
| 19 | 17, 18 | imbi12d 234 | 
. . . . . . . . 9
 | 
| 20 | 16, 19 | rspc 2862 | 
. . . . . . . 8
 | 
| 21 | 13, 20 | ax-mp 5 | 
. . . . . . 7
 | 
| 22 | 12, 21 | ax-mp 5 | 
. . . . . 6
 | 
| 23 | 10, 22 | ax-mp 5 | 
. . . . 5
 | 
| 24 | ralsns 3660 | 
. . . . . 6
 | |
| 25 | 13, 24 | ax-mp 5 | 
. . . . 5
 | 
| 26 | 23, 25 | mpbir 146 | 
. . . 4
 | 
| 27 | suc0 4446 | 
. . . . 5
 | |
| 28 | 27 | raleqi 2697 | 
. . . 4
 | 
| 29 | 26, 28 | mpbir 146 | 
. . 3
 | 
| 30 | simpr 110 | 
. . . . . 6
 | |
| 31 | peano2 4631 | 
. . . . . . . . 9
 | |
| 32 | 31 | adantr 276 | 
. . . . . . . 8
 | 
| 33 | omsinds.1 | 
. . . . . . . . . 10
 | |
| 34 | 33 | cbvralv 2729 | 
. . . . . . . . 9
 | 
| 35 | 30, 34 | sylib 122 | 
. . . . . . . 8
 | 
| 36 | nfv 1542 | 
. . . . . . . . . . 11
 | |
| 37 | nfsbc1v 3008 | 
. . . . . . . . . . 11
 | |
| 38 | 36, 37 | nfim 1586 | 
. . . . . . . . . 10
 | 
| 39 | raleq 2693 | 
. . . . . . . . . . 11
 | |
| 40 | sbceq1a 2999 | 
. . . . . . . . . . 11
 | |
| 41 | 39, 40 | imbi12d 234 | 
. . . . . . . . . 10
 | 
| 42 | 38, 41 | rspc 2862 | 
. . . . . . . . 9
 | 
| 43 | 12, 42 | mpi 15 | 
. . . . . . . 8
 | 
| 44 | 32, 35, 43 | sylc 62 | 
. . . . . . 7
 | 
| 45 | ralsns 3660 | 
. . . . . . . 8
 | |
| 46 | 32, 45 | syl 14 | 
. . . . . . 7
 | 
| 47 | 44, 46 | mpbird 167 | 
. . . . . 6
 | 
| 48 | ralun 3345 | 
. . . . . 6
 | |
| 49 | 30, 47, 48 | syl2anc 411 | 
. . . . 5
 | 
| 50 | df-suc 4406 | 
. . . . . . 7
 | |
| 51 | 50 | a1i 9 | 
. . . . . 6
 | 
| 52 | 51 | raleqdv 2699 | 
. . . . 5
 | 
| 53 | 49, 52 | mpbird 167 | 
. . . 4
 | 
| 54 | 53 | ex 115 | 
. . 3
 | 
| 55 | 3, 5, 7, 9, 29, 54 | finds 4636 | 
. 2
 | 
| 56 | sucidg 4451 | 
. 2
 | |
| 57 | 1, 55, 56 | rspcdva 2873 | 
1
 | 
| Colors of variables: wff set class | 
| Syntax hints:     | 
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-sep 4151 ax-nul 4159 ax-pow 4207 ax-pr 4242 ax-un 4468 ax-iinf 4624 | 
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ral 2480 df-rex 2481 df-v 2765 df-sbc 2990 df-dif 3159 df-un 3161 df-in 3163 df-ss 3170 df-nul 3451 df-pw 3607 df-sn 3628 df-pr 3629 df-uni 3840 df-int 3875 df-suc 4406 df-iom 4627 | 
| This theorem is referenced by: nninfalllem1 15652 nninfsellemqall 15659 | 
| Copyright terms: Public domain | W3C validator |