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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 4295 | . . 3 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵..^𝐶) ≠ ∅) | |
| 2 | fzof 13584 | . . . . . 6 ⊢ ..^:(ℤ × ℤ)⟶𝒫 ℤ | |
| 3 | 2 | fdmi 6681 | . . . . 5 ⊢ dom ..^ = (ℤ × ℤ) |
| 4 | 3 | ndmov 7552 | . . . 4 ⊢ (¬ (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵..^𝐶) = ∅) |
| 5 | 4 | necon1ai 2960 | . . 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 2114 ≠ wne 2933 ∅c0 4287 𝒫 cpw 4556 × cxp 5630 (class class class)co 7368 ℤcz 12500 ..^cfzo 13582 |
| 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-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-nul 5253 ax-pr 5379 ax-un 7690 ax-cnex 11094 ax-resscn 11095 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-fv 6508 df-ov 7371 df-oprab 7372 df-mpo 7373 df-1st 7943 df-2nd 7944 df-neg 11379 df-z 12501 df-uz 12764 df-fz 13436 df-fzo 13583 |
| This theorem is referenced by: elfzoelz 13587 elfzo2 13590 elfzole1 13595 elfzolt2 13596 elfzolt3 13597 elfzolt2b 13598 elfzolt3b 13599 elfzop1le2 13600 fzonel 13601 elfzouz2 13602 fzonnsub 13612 fzoss1 13614 fzospliti 13619 fzodisj 13621 elfzolem1 13632 elfzo0subge1 13633 elfzo0suble 13634 fzoaddel 13645 fzo0addelr 13647 elfzoextl 13649 elfzoext 13650 elincfzoext 13651 fzosubel 13652 fzoend 13685 ssfzo12 13687 fzoopth 13690 fzofzp1 13692 elfzo1elm1fzo0 13696 fzonfzoufzol 13699 elfznelfzob 13702 peano2fzor 13703 fzostep1 13714 modsumfzodifsn 13879 addmodlteq 13881 cshwidxm1 14742 cshimadifsn0 14765 fzomaxdiflem 15278 fzo0dvdseq 16262 fzocongeq 16263 addmodlteqALT 16264 efgsp1 19678 efgsres 19679 crctcshwlkn0lem2 29896 crctcshwlkn0lem3 29897 crctcshwlkn0lem5 29899 crctcshwlkn0lem6 29900 crctcshwlkn0 29906 crctcsh 29909 eucrctshift 30330 eucrct2eupth 30332 fzssfzo 34717 signsvfn 34760 dvnmul 46301 iblspltprt 46331 stoweidlem3 46361 fourierdlem12 46477 fourierdlem50 46514 fourierdlem64 46528 fourierdlem79 46543 ormkglobd 47233 natglobalincr 47235 chnerlem2 47241 submodlt 47710 iccpartiltu 47782 iccpartgt 47787 bgoldbtbndlem2 48166 gpgedgvtx1 48422 |
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