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Mirrors > Home > ILE Home > Th. List > fnn0ind | Unicode version |
Description: Induction on the integers from to inclusive . The first four hypotheses give us the substitution instances we need; the last two are the basis and the induction step. (Contributed by Paul Chapman, 31-Mar-2011.) |
Ref | Expression |
---|---|
fnn0ind.1 | |
fnn0ind.2 | |
fnn0ind.3 | |
fnn0ind.4 | |
fnn0ind.5 | |
fnn0ind.6 |
Ref | Expression |
---|---|
fnn0ind |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elnn0z 9195 | . . . 4 | |
2 | nn0z 9202 | . . . . . 6 | |
3 | 0z 9193 | . . . . . . . 8 | |
4 | fnn0ind.1 | . . . . . . . . 9 | |
5 | fnn0ind.2 | . . . . . . . . 9 | |
6 | fnn0ind.3 | . . . . . . . . 9 | |
7 | fnn0ind.4 | . . . . . . . . 9 | |
8 | elnn0z 9195 | . . . . . . . . . . 11 | |
9 | fnn0ind.5 | . . . . . . . . . . 11 | |
10 | 8, 9 | sylbir 134 | . . . . . . . . . 10 |
11 | 10 | 3adant1 1004 | . . . . . . . . 9 |
12 | zre 9186 | . . . . . . . . . . . . . . . 16 | |
13 | zre 9186 | . . . . . . . . . . . . . . . 16 | |
14 | 0re 7890 | . . . . . . . . . . . . . . . . 17 | |
15 | lelttr 7978 | . . . . . . . . . . . . . . . . . 18 | |
16 | ltle 7977 | . . . . . . . . . . . . . . . . . . 19 | |
17 | 16 | 3adant2 1005 | . . . . . . . . . . . . . . . . . 18 |
18 | 15, 17 | syld 45 | . . . . . . . . . . . . . . . . 17 |
19 | 14, 18 | mp3an1 1313 | . . . . . . . . . . . . . . . 16 |
20 | 12, 13, 19 | syl2an 287 | . . . . . . . . . . . . . . 15 |
21 | 20 | ex 114 | . . . . . . . . . . . . . 14 |
22 | 21 | com23 78 | . . . . . . . . . . . . 13 |
23 | 22 | 3impib 1190 | . . . . . . . . . . . 12 |
24 | 23 | impcom 124 | . . . . . . . . . . 11 |
25 | elnn0z 9195 | . . . . . . . . . . . . . . . . 17 | |
26 | 25 | anbi1i 454 | . . . . . . . . . . . . . . . 16 |
27 | fnn0ind.6 | . . . . . . . . . . . . . . . . 17 | |
28 | 27 | 3expb 1193 | . . . . . . . . . . . . . . . 16 |
29 | 8, 26, 28 | syl2anbr 290 | . . . . . . . . . . . . . . 15 |
30 | 29 | expcom 115 | . . . . . . . . . . . . . 14 |
31 | 30 | 3impa 1183 | . . . . . . . . . . . . 13 |
32 | 31 | expd 256 | . . . . . . . . . . . 12 |
33 | 32 | impcom 124 | . . . . . . . . . . 11 |
34 | 24, 33 | mpd 13 | . . . . . . . . . 10 |
35 | 34 | adantll 468 | . . . . . . . . 9 |
36 | 4, 5, 6, 7, 11, 35 | fzind 9297 | . . . . . . . 8 |
37 | 3, 36 | mpanl1 431 | . . . . . . 7 |
38 | 37 | expcom 115 | . . . . . 6 |
39 | 2, 38 | syl5 32 | . . . . 5 |
40 | 39 | 3expa 1192 | . . . 4 |
41 | 1, 40 | sylanb 282 | . . 3 |
42 | 41 | impcom 124 | . 2 |
43 | 42 | 3impb 1188 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 w3a 967 wceq 1342 wcel 2135 class class class wbr 3976 (class class class)co 5836 cr 7743 cc0 7744 c1 7745 caddc 7747 clt 7924 cle 7925 cn0 9105 cz 9182 |
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 604 ax-in2 605 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-13 2137 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-pow 4147 ax-pr 4181 ax-un 4405 ax-setind 4508 ax-cnex 7835 ax-resscn 7836 ax-1cn 7837 ax-1re 7838 ax-icn 7839 ax-addcl 7840 ax-addrcl 7841 ax-mulcl 7842 ax-addcom 7844 ax-addass 7846 ax-distr 7848 ax-i2m1 7849 ax-0lt1 7850 ax-0id 7852 ax-rnegex 7853 ax-cnre 7855 ax-pre-ltirr 7856 ax-pre-ltwlin 7857 ax-pre-lttrn 7858 ax-pre-ltadd 7860 |
This theorem depends on definitions: df-bi 116 df-3or 968 df-3an 969 df-tru 1345 df-fal 1348 df-nf 1448 df-sb 1750 df-eu 2016 df-mo 2017 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ne 2335 df-nel 2430 df-ral 2447 df-rex 2448 df-reu 2449 df-rab 2451 df-v 2723 df-sbc 2947 df-dif 3113 df-un 3115 df-in 3117 df-ss 3124 df-pw 3555 df-sn 3576 df-pr 3577 df-op 3579 df-uni 3784 df-int 3819 df-br 3977 df-opab 4038 df-id 4265 df-xp 4604 df-rel 4605 df-cnv 4606 df-co 4607 df-dm 4608 df-iota 5147 df-fun 5184 df-fv 5190 df-riota 5792 df-ov 5839 df-oprab 5840 df-mpo 5841 df-pnf 7926 df-mnf 7927 df-xr 7928 df-ltxr 7929 df-le 7930 df-sub 8062 df-neg 8063 df-inn 8849 df-n0 9106 df-z 9183 |
This theorem is referenced by: nn0seqcvgd 11952 |
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