| 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 48117 | . 2 ⊢ (𝑍 ∈ Odd ↔ (𝑍 ∈ ℤ ∧ ((𝑍 + 1) / 2) ∈ ℤ)) | |
| 2 | 1 | simplbi 496 | 1 ⊢ (𝑍 ∈ Odd → 𝑍 ∈ ℤ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 (class class class)co 7360 1c1 11030 + caddc 11032 / cdiv 11798 2c2 12227 ℤcz 12515 Odd codd 48113 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-iota 6448 df-fv 6500 df-ov 7363 df-odd 48115 |
| This theorem is referenced by: oddm1div2z 48122 oddp1eveni 48129 oddm1eveni 48130 m1expoddALTV 48136 2dvdsoddp1 48144 2dvdsoddm1 48145 zofldiv2ALTV 48150 oddflALTV 48151 gcd2odd1 48156 oexpnegALTV 48165 oexpnegnz 48166 bits0oALTV 48169 opoeALTV 48171 opeoALTV 48172 omoeALTV 48173 omeoALTV 48174 epoo 48191 emoo 48192 stgoldbwt 48264 sbgoldbwt 48265 sbgoldbst 48266 sbgoldbm 48272 bgoldbtbndlem1 48293 bgoldbtbndlem2 48294 bgoldbtbndlem3 48295 bgoldbtbndlem4 48296 bgoldbtbnd 48297 tgoldbach 48305 |
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