| 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 48278 | . 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 2149 (class class class)co 7408 1c1 11097 + caddc 11099 / cdiv 11867 2c2 12291 ℤcz 12587 Odd codd 48274 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-ext 2741 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-sb 2098 df-clab 2748 df-cleq 2761 df-clel 2844 df-rab 3424 df-v 3465 df-dif 3916 df-un 3918 df-ss 3930 df-nul 4295 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4874 df-br 5111 df-iota 6490 df-fv 6542 df-ov 7411 df-odd 48276 |
| This theorem is referenced by: oddm1div2z 48283 oddp1eveni 48290 oddm1eveni 48291 m1expoddALTV 48297 2dvdsoddp1 48305 2dvdsoddm1 48306 zofldiv2ALTV 48311 oddflALTV 48312 gcd2odd1 48317 oexpnegALTV 48326 oexpnegnz 48327 bits0oALTV 48330 opoeALTV 48332 opeoALTV 48333 omoeALTV 48334 omeoALTV 48335 epoo 48352 emoo 48353 stgoldbwt 48425 sbgoldbwt 48426 sbgoldbst 48427 sbgoldbm 48433 bgoldbtbndlem1 48454 bgoldbtbndlem2 48455 bgoldbtbndlem3 48456 bgoldbtbndlem4 48457 bgoldbtbnd 48458 tgoldbach 48466 |
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