| Mathbox for Alexander van der Vekens |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > oddz | Structured version Visualization version GIF version | ||
| Description: An odd number is an integer. (Contributed by AV, 14-Jun-2020.) |
| Ref | Expression |
|---|---|
| oddz | ⊢ (𝑍 ∈ Odd → 𝑍 ∈ ℤ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | isodd 48394 | . 2 ⊢ (𝑍 ∈ Odd ↔ (𝑍 ∈ ℤ ∧ ((𝑍 + 1) / 2) ∈ ℤ)) | |
| 2 | 1 | simplbi 501 | 1 ⊢ (𝑍 ∈ Odd → 𝑍 ∈ ℤ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2143 (class class class)co 7410 1c1 11096 + caddc 11098 / cdiv 11866 2c2 12290 ℤcz 12586 Odd codd 48390 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-rab 3417 df-v 3457 df-dif 3908 df-un 3910 df-ss 3922 df-nul 4287 df-if 4488 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-br 5110 df-iota 6492 df-fv 6544 df-ov 7413 df-odd 48392 |
| This theorem is referenced by: oddm1div2z 48399 oddp1eveni 48406 oddm1eveni 48407 m1expoddALTV 48413 2dvdsoddp1 48421 2dvdsoddm1 48422 zofldiv2ALTV 48427 oddflALTV 48428 gcd2odd1 48433 oexpnegALTV 48442 oexpnegnz 48443 bits0oALTV 48446 opoeALTV 48448 opeoALTV 48449 omoeALTV 48450 omeoALTV 48451 epoo 48468 emoo 48469 stgoldbwt 48541 sbgoldbwt 48542 sbgoldbst 48543 sbgoldbm 48549 bgoldbtbndlem1 48570 bgoldbtbndlem2 48571 bgoldbtbndlem3 48572 bgoldbtbndlem4 48573 bgoldbtbnd 48574 tgoldbach 48582 |
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