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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 4296 | . . 3 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵..^𝐶) ≠ ∅) | |
| 2 | fzof 13672 | . . . . . 6 ⊢ ..^:(ℤ × ℤ)⟶𝒫 ℤ | |
| 3 | 2 | fdmi 6707 | . . . . 5 ⊢ dom ..^ = (ℤ × ℤ) |
| 4 | 3 | ndmov 7584 | . . . 4 ⊢ (¬ (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵..^𝐶) = ∅) |
| 5 | 4 | necon1ai 2987 | . . 3 ⊢ ((𝐵..^𝐶) ≠ ∅ → (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ)) |
| 6 | 1, 5 | syl 18 | . 2 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ)) |
| 7 | 6 | simprd 500 | 1 ⊢ (𝐴 ∈ (𝐵..^𝐶) → 𝐶 ∈ ℤ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 ∈ wcel 2145 ≠ wne 2960 ∅c0 4288 𝒫 cpw 4558 × cxp 5649 (class class class)co 7400 ℤcz 12579 ..^cfzo 13670 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-sep 5250 ax-nul 5260 ax-pr 5394 ax-un 7722 ax-cnex 11144 ax-resscn 11145 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3080 df-rex 3090 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-iun 4953 df-br 5105 df-opab 5167 df-mpt 5186 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-fv 6533 df-ov 7403 df-oprab 7404 df-mpo 7405 df-1st 7974 df-2nd 7975 df-neg 11432 df-z 12580 df-uz 12851 df-fz 13524 df-fzo 13671 |
| This theorem is referenced by: elfzoelz 13675 elfzo2 13678 elfzole1 13684 elfzolt2 13685 elfzolt3 13686 elfzolt2b 13687 elfzolt3b 13688 elfzop1le2 13689 fzonel 13690 elfzouz2 13691 fzonnsub 13701 fzoss1 13703 fzospliti 13708 fzodisj 13710 elfzolem1 13721 elfzo0subge1 13722 elfzo0suble 13723 fzoaddel 13734 fzo0addelr 13736 elfzoextl 13738 elfzoext 13739 elincfzoext 13740 fzosubel 13741 fzoend 13774 ssfzo12 13776 fzoopth 13779 fzofzp1 13781 elfzo1elm1fzo0 13785 fzonfzoufzol 13788 elfznelfzob 13791 peano2fzor 13792 fzostep1 13803 modsumfzodifsn 13968 addmodlteq 13970 cshwidxm1 14832 cshimadifsn0 14855 fzomaxdiflem 15382 fzo0dvdseq 16369 fzocongeq 16370 addmodlteqALT 16371 efgsp1 19795 efgsres 19796 crctcshwlkn0lem2 30065 crctcshwlkn0lem3 30066 crctcshwlkn0lem5 30068 crctcshwlkn0lem6 30069 crctcshwlkn0 30075 crctcsh 30078 eucrctshift 30499 eucrct2eupth 30501 fzssfzo 34841 signsvfn 34881 dvnmul 46516 iblspltprt 46546 stoweidlem3 46576 fourierdlem12 46692 fourierdlem50 46729 fourierdlem64 46743 fourierdlem79 46758 ormkglobd 47450 natglobalincr 47452 chnerlem2 47458 nnmul2 47923 submodlt 47949 muldvdsfacgt 47979 muldvdsfacm1 47980 iccpartiltu 48027 iccpartgt 48032 bgoldbtbndlem2 48427 gpgedgvtx1 48683 |
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