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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 4299 | . . 3 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵..^𝐶) ≠ ∅) | |
2 | fzof 13579 | . . . . . 6 ⊢ ..^:(ℤ × ℤ)⟶𝒫 ℤ | |
3 | 2 | fdmi 6685 | . . . . 5 ⊢ dom ..^ = (ℤ × ℤ) |
4 | 3 | ndmov 7543 | . . . 4 ⊢ (¬ (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵..^𝐶) = ∅) |
5 | 4 | necon1ai 2967 | . . 3 ⊢ ((𝐵..^𝐶) ≠ ∅ → (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ)) |
6 | 1, 5 | syl 17 | . 2 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ)) |
7 | 6 | simprd 496 | 1 ⊢ (𝐴 ∈ (𝐵..^𝐶) → 𝐶 ∈ ℤ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∈ wcel 2106 ≠ wne 2939 ∅c0 4287 𝒫 cpw 4565 × cxp 5636 (class class class)co 7362 ℤcz 12508 ..^cfzo 13577 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-sep 5261 ax-nul 5268 ax-pr 5389 ax-un 7677 ax-cnex 11116 ax-resscn 11117 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-ral 3061 df-rex 3070 df-rab 3406 df-v 3448 df-sbc 3743 df-csb 3859 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4288 df-if 4492 df-pw 4567 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4871 df-iun 4961 df-br 5111 df-opab 5173 df-mpt 5194 df-id 5536 df-xp 5644 df-rel 5645 df-cnv 5646 df-co 5647 df-dm 5648 df-rn 5649 df-res 5650 df-ima 5651 df-iota 6453 df-fun 6503 df-fn 6504 df-f 6505 df-fv 6509 df-ov 7365 df-oprab 7366 df-mpo 7367 df-1st 7926 df-2nd 7927 df-neg 11397 df-z 12509 df-uz 12773 df-fz 13435 df-fzo 13578 |
This theorem is referenced by: elfzoelz 13582 elfzo2 13585 elfzole1 13590 elfzolt2 13591 elfzolt3 13592 elfzolt2b 13593 elfzolt3b 13594 elfzop1le2 13595 fzonel 13596 elfzouz2 13597 fzonnsub 13607 fzoss1 13609 fzospliti 13614 fzodisj 13616 fzoaddel 13635 fzo0addelr 13637 elfzoext 13639 elincfzoext 13640 fzosubel 13641 fzoend 13673 ssfzo12 13675 fzofzp1 13679 elfzo1elm1fzo0 13683 fzonfzoufzol 13685 elfznelfzob 13688 peano2fzor 13689 fzostep1 13698 modsumfzodifsn 13859 addmodlteq 13861 cshwidxm1 14707 cshimadifsn0 14731 fzomaxdiflem 15239 fzo0dvdseq 16216 fzocongeq 16217 addmodlteqALT 16218 efgsp1 19533 efgsres 19534 crctcshwlkn0lem2 28819 crctcshwlkn0lem3 28820 crctcshwlkn0lem5 28822 crctcshwlkn0lem6 28823 crctcshwlkn0 28829 crctcsh 28832 eucrctshift 29250 eucrct2eupth 29252 fzssfzo 33240 signsvfn 33283 elfzolem1 43676 dvnmul 44304 iblspltprt 44334 stoweidlem3 44364 fourierdlem12 44480 fourierdlem50 44517 fourierdlem64 44531 fourierdlem79 44546 natglobalincr 45236 fzoopth 45679 iccpartiltu 45734 iccpartgt 45739 bgoldbtbndlem2 46118 |
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