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Mirrors > Home > ILE Home > Th. List > indstr | Unicode version |
Description: Strong Mathematical Induction for positive integers (inference schema). (Contributed by NM, 17-Aug-2001.) |
Ref | Expression |
---|---|
indstr.1 | |
indstr.2 |
Ref | Expression |
---|---|
indstr |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | breq2 3933 | . . . . 5 | |
2 | 1 | imbi1d 230 | . . . 4 |
3 | 2 | ralbidv 2437 | . . 3 |
4 | breq2 3933 | . . . . 5 | |
5 | 4 | imbi1d 230 | . . . 4 |
6 | 5 | ralbidv 2437 | . . 3 |
7 | breq2 3933 | . . . . 5 | |
8 | 7 | imbi1d 230 | . . . 4 |
9 | 8 | ralbidv 2437 | . . 3 |
10 | breq2 3933 | . . . . 5 | |
11 | 10 | imbi1d 230 | . . . 4 |
12 | 11 | ralbidv 2437 | . . 3 |
13 | nnnlt1 8746 | . . . . 5 | |
14 | 13 | pm2.21d 608 | . . . 4 |
15 | 14 | rgen 2485 | . . 3 |
16 | 1nn 8731 | . . . . 5 | |
17 | elex2 2702 | . . . . 5 | |
18 | nfra1 2466 | . . . . . 6 | |
19 | 18 | r19.3rm 3451 | . . . . 5 |
20 | 16, 17, 19 | mp2b 8 | . . . 4 |
21 | rsp 2480 | . . . . . . . . . 10 | |
22 | 21 | com12 30 | . . . . . . . . 9 |
23 | 22 | adantl 275 | . . . . . . . 8 |
24 | indstr.2 | . . . . . . . . . . . . 13 | |
25 | 24 | rgen 2485 | . . . . . . . . . . . 12 |
26 | nfv 1508 | . . . . . . . . . . . . 13 | |
27 | nfv 1508 | . . . . . . . . . . . . . 14 | |
28 | nfsbc1v 2927 | . . . . . . . . . . . . . 14 | |
29 | 27, 28 | nfim 1551 | . . . . . . . . . . . . 13 |
30 | breq2 3933 | . . . . . . . . . . . . . . . 16 | |
31 | 30 | imbi1d 230 | . . . . . . . . . . . . . . 15 |
32 | 31 | ralbidv 2437 | . . . . . . . . . . . . . 14 |
33 | sbceq1a 2918 | . . . . . . . . . . . . . 14 | |
34 | 32, 33 | imbi12d 233 | . . . . . . . . . . . . 13 |
35 | 26, 29, 34 | cbvral 2650 | . . . . . . . . . . . 12 |
36 | 25, 35 | mpbi 144 | . . . . . . . . . . 11 |
37 | 36 | rspec 2484 | . . . . . . . . . 10 |
38 | vex 2689 | . . . . . . . . . . . . 13 | |
39 | indstr.1 | . . . . . . . . . . . . 13 | |
40 | 38, 39 | sbcie 2943 | . . . . . . . . . . . 12 |
41 | dfsbcq 2911 | . . . . . . . . . . . 12 | |
42 | 40, 41 | syl5bbr 193 | . . . . . . . . . . 11 |
43 | 42 | biimprcd 159 | . . . . . . . . . 10 |
44 | 37, 43 | syl6 33 | . . . . . . . . 9 |
45 | 44 | adantr 274 | . . . . . . . 8 |
46 | 23, 45 | jcad 305 | . . . . . . 7 |
47 | jaob 699 | . . . . . . 7 | |
48 | 46, 47 | syl6ibr 161 | . . . . . 6 |
49 | nnleltp1 9113 | . . . . . . . . 9 | |
50 | nnz 9073 | . . . . . . . . . 10 | |
51 | nnz 9073 | . . . . . . . . . 10 | |
52 | zleloe 9101 | . . . . . . . . . 10 | |
53 | 50, 51, 52 | syl2an 287 | . . . . . . . . 9 |
54 | 49, 53 | bitr3d 189 | . . . . . . . 8 |
55 | 54 | ancoms 266 | . . . . . . 7 |
56 | 55 | imbi1d 230 | . . . . . 6 |
57 | 48, 56 | sylibrd 168 | . . . . 5 |
58 | 57 | ralimdva 2499 | . . . 4 |
59 | 20, 58 | syl5bi 151 | . . 3 |
60 | 3, 6, 9, 12, 15, 59 | nnind 8736 | . 2 |
61 | 60, 24 | mpd 13 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wo 697 wceq 1331 wex 1468 wcel 1480 wral 2416 wsbc 2909 class class class wbr 3929 (class class class)co 5774 c1 7621 caddc 7623 clt 7800 cle 7801 cn 8720 cz 9054 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 ax-cnex 7711 ax-resscn 7712 ax-1cn 7713 ax-1re 7714 ax-icn 7715 ax-addcl 7716 ax-addrcl 7717 ax-mulcl 7718 ax-addcom 7720 ax-addass 7722 ax-distr 7724 ax-i2m1 7725 ax-0lt1 7726 ax-0id 7728 ax-rnegex 7729 ax-cnre 7731 ax-pre-ltirr 7732 ax-pre-ltwlin 7733 ax-pre-lttrn 7734 ax-pre-ltadd 7736 |
This theorem depends on definitions: df-bi 116 df-3or 963 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-nel 2404 df-ral 2421 df-rex 2422 df-reu 2423 df-rab 2425 df-v 2688 df-sbc 2910 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-int 3772 df-br 3930 df-opab 3990 df-id 4215 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-iota 5088 df-fun 5125 df-fv 5131 df-riota 5730 df-ov 5777 df-oprab 5778 df-mpo 5779 df-pnf 7802 df-mnf 7803 df-xr 7804 df-ltxr 7805 df-le 7806 df-sub 7935 df-neg 7936 df-inn 8721 df-n0 8978 df-z 9055 |
This theorem is referenced by: indstr2 9403 |
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