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| Mirrors > Home > MPE Home > Th. List > elfzoel2 | Structured version Visualization version GIF version | ||
| Description: Reverse closure for half-open integer sets. (Contributed by Stefan O'Rear, 14-Aug-2015.) |
| Ref | Expression |
|---|---|
| elfzoel2 | ⊢ (𝐴 ∈ (𝐵..^𝐶) → 𝐶 ∈ ℤ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ne0i 4291 | . . 3 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵..^𝐶) ≠ ∅) | |
| 2 | fzof 13570 | . . . . . 6 ⊢ ..^:(ℤ × ℤ)⟶𝒫 ℤ | |
| 3 | 2 | fdmi 6671 | . . . . 5 ⊢ dom ..^ = (ℤ × ℤ) |
| 4 | 3 | ndmov 7540 | . . . 4 ⊢ (¬ (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵..^𝐶) = ∅) |
| 5 | 4 | necon1ai 2957 | . . 3 ⊢ ((𝐵..^𝐶) ≠ ∅ → (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ)) |
| 6 | 1, 5 | syl 17 | . 2 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ)) |
| 7 | 6 | simprd 495 | 1 ⊢ (𝐴 ∈ (𝐵..^𝐶) → 𝐶 ∈ ℤ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∈ wcel 2113 ≠ wne 2930 ∅c0 4283 𝒫 cpw 4552 × cxp 5620 (class class class)co 7356 ℤcz 12486 ..^cfzo 13568 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2706 ax-sep 5239 ax-nul 5249 ax-pr 5375 ax-un 7678 ax-cnex 11080 ax-resscn 11081 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2809 df-nfc 2883 df-ne 2931 df-ral 3050 df-rex 3059 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4579 df-pr 4581 df-op 4585 df-uni 4862 df-iun 4946 df-br 5097 df-opab 5159 df-mpt 5178 df-id 5517 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-fv 6498 df-ov 7359 df-oprab 7360 df-mpo 7361 df-1st 7931 df-2nd 7932 df-neg 11365 df-z 12487 df-uz 12750 df-fz 13422 df-fzo 13569 |
| This theorem is referenced by: elfzoelz 13573 elfzo2 13576 elfzole1 13581 elfzolt2 13582 elfzolt3 13583 elfzolt2b 13584 elfzolt3b 13585 elfzop1le2 13586 fzonel 13587 elfzouz2 13588 fzonnsub 13598 fzoss1 13600 fzospliti 13605 fzodisj 13607 elfzolem1 13618 elfzo0subge1 13619 elfzo0suble 13620 fzoaddel 13631 fzo0addelr 13633 elfzoextl 13635 elfzoext 13636 elincfzoext 13637 fzosubel 13638 fzoend 13671 ssfzo12 13673 fzoopth 13676 fzofzp1 13678 elfzo1elm1fzo0 13682 fzonfzoufzol 13685 elfznelfzob 13688 peano2fzor 13689 fzostep1 13700 modsumfzodifsn 13865 addmodlteq 13867 cshwidxm1 14728 cshimadifsn0 14751 fzomaxdiflem 15264 fzo0dvdseq 16248 fzocongeq 16249 addmodlteqALT 16250 efgsp1 19664 efgsres 19665 crctcshwlkn0lem2 29833 crctcshwlkn0lem3 29834 crctcshwlkn0lem5 29836 crctcshwlkn0lem6 29837 crctcshwlkn0 29843 crctcsh 29846 eucrctshift 30267 eucrct2eupth 30269 fzssfzo 34645 signsvfn 34688 dvnmul 46129 iblspltprt 46159 stoweidlem3 46189 fourierdlem12 46305 fourierdlem50 46342 fourierdlem64 46356 fourierdlem79 46371 ormkglobd 47061 natglobalincr 47063 chnerlem2 47069 submodlt 47538 iccpartiltu 47610 iccpartgt 47615 bgoldbtbndlem2 47994 gpgedgvtx1 48250 |
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