| 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 48212 | . 2 ⊢ (𝑍 ∈ Odd ↔ (𝑍 ∈ ℤ ∧ ((𝑍 + 1) / 2) ∈ ℤ)) | |
| 2 | 1 | simplbi 500 | 1 ⊢ (𝑍 ∈ Odd → 𝑍 ∈ ℤ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2141 (class class class)co 7391 1c1 11068 + caddc 11070 / cdiv 11838 2c2 12266 ℤcz 12562 Odd codd 48208 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-ext 2733 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-sb 2090 df-clab 2740 df-cleq 2753 df-clel 2836 df-rab 3414 df-v 3455 df-dif 3905 df-un 3907 df-ss 3919 df-nul 4284 df-if 4478 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-br 5098 df-iota 6472 df-fv 6524 df-ov 7394 df-odd 48210 |
| This theorem is referenced by: oddm1div2z 48217 oddp1eveni 48224 oddm1eveni 48225 m1expoddALTV 48231 2dvdsoddp1 48239 2dvdsoddm1 48240 zofldiv2ALTV 48245 oddflALTV 48246 gcd2odd1 48251 oexpnegALTV 48260 oexpnegnz 48261 bits0oALTV 48264 opoeALTV 48266 opeoALTV 48267 omoeALTV 48268 omeoALTV 48269 epoo 48286 emoo 48287 stgoldbwt 48359 sbgoldbwt 48360 sbgoldbst 48361 sbgoldbm 48367 bgoldbtbndlem1 48388 bgoldbtbndlem2 48389 bgoldbtbndlem3 48390 bgoldbtbndlem4 48391 bgoldbtbnd 48392 tgoldbach 48400 |
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