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| Mirrors > Home > ILE Home > Th. List > nnzi | GIF version | ||
| Description: A positive integer is an integer. (Contributed by Mario Carneiro, 18-Feb-2014.) |
| Ref | Expression |
|---|---|
| nnzi.1 | ⊢ 𝑁 ∈ ℕ |
| Ref | Expression |
|---|---|
| nnzi | ⊢ 𝑁 ∈ ℤ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnssz 9426 | . 2 ⊢ ℕ ⊆ ℤ | |
| 2 | nnzi.1 | . 2 ⊢ 𝑁 ∈ ℕ | |
| 3 | 1, 2 | sselii 3199 | 1 ⊢ 𝑁 ∈ ℤ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2178 ℕcn 9073 ℤcz 9409 |
| 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 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-13 2180 ax-14 2181 ax-ext 2189 ax-sep 4179 ax-pow 4235 ax-pr 4270 ax-un 4499 ax-setind 4604 ax-cnex 8053 ax-resscn 8054 ax-1cn 8055 ax-1re 8056 ax-icn 8057 ax-addcl 8058 ax-addrcl 8059 ax-mulcl 8060 ax-addcom 8062 ax-addass 8064 ax-distr 8066 ax-i2m1 8067 ax-0lt1 8068 ax-0id 8070 ax-rnegex 8071 ax-cnre 8073 ax-pre-ltirr 8074 ax-pre-ltwlin 8075 ax-pre-lttrn 8076 ax-pre-ltadd 8078 |
| This theorem depends on definitions: df-bi 117 df-3or 982 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-ne 2379 df-nel 2474 df-ral 2491 df-rex 2492 df-reu 2493 df-rab 2495 df-v 2779 df-sbc 3007 df-dif 3177 df-un 3179 df-in 3181 df-ss 3188 df-pw 3629 df-sn 3650 df-pr 3651 df-op 3653 df-uni 3866 df-int 3901 df-br 4061 df-opab 4123 df-id 4359 df-xp 4700 df-rel 4701 df-cnv 4702 df-co 4703 df-dm 4704 df-iota 5252 df-fun 5293 df-fv 5299 df-riota 5924 df-ov 5972 df-oprab 5973 df-mpo 5974 df-pnf 8146 df-mnf 8147 df-xr 8148 df-ltxr 8149 df-le 8150 df-sub 8282 df-neg 8283 df-inn 9074 df-z 9410 |
| This theorem is referenced by: 1z 9435 2z 9437 3z 9438 4z 9439 3dvds 12336 3dvdsdec 12337 ndvdsi 12405 6gcd4e2 12477 3lcm2e6woprm 12569 6lcm4e12 12570 3lcm2e6 12643 prm23ge5 12748 pockthi 12842 modxai 12900 gcdmodi 12905 strleun 13097 strle1g 13099 2logb9irr 15604 2logb9irrap 15610 lgsval 15642 lgsfvalg 15643 lgsfcl2 15644 lgsval2lem 15648 lgsdir2lem5 15670 lgsdir2 15671 lgsne0 15676 2lgs 15742 2lgsoddprmlem2 15744 2lgsoddprm 15751 ex-dvds 15974 ex-gcd 15975 |
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