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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 4294 | . . 3 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵..^𝐶) ≠ ∅) | |
| 2 | fzof 13680 | . . . . . 6 ⊢ ..^:(ℤ × ℤ)⟶𝒫 ℤ | |
| 3 | 2 | fdmi 6717 | . . . . 5 ⊢ dom ..^ = (ℤ × ℤ) |
| 4 | 3 | ndmov 7594 | . . . 4 ⊢ (¬ (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵..^𝐶) = ∅) |
| 5 | 4 | necon1ai 2985 | . . 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 2143 ≠ wne 2958 ∅c0 4286 𝒫 cpw 4562 × cxp 5659 (class class class)co 7410 ℤcz 12586 ..^cfzo 13678 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5257 ax-nul 5269 ax-pr 5404 ax-un 7732 ax-cnex 11151 ax-resscn 11152 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-iun 4958 df-br 5110 df-opab 5174 df-mpt 5193 df-id 5556 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-fv 6544 df-ov 7413 df-oprab 7414 df-mpo 7415 df-1st 7982 df-2nd 7983 df-neg 11439 df-z 12587 df-uz 12858 df-fz 13531 df-fzo 13679 |
| This theorem is referenced by: elfzoelz 13683 elfzo2 13686 elfzole1 13692 elfzolt2 13693 elfzolt3 13694 elfzolt2b 13695 elfzolt3b 13696 elfzop1le2 13697 fzonel 13698 elfzouz2 13699 fzonnsub 13709 fzoss1 13711 fzospliti 13716 fzodisj 13718 elfzolem1 13729 elfzo0subge1 13730 elfzo0suble 13731 fzoaddel 13742 fzo0addelr 13744 elfzoextl 13746 elfzoext 13747 elincfzoext 13748 fzosubel 13749 fzoend 13782 ssfzo12 13784 fzoopth 13787 fzofzp1 13789 elfzo1elm1fzo0 13793 fzonfzoufzol 13796 elfznelfzob 13799 peano2fzor 13800 fzostep1 13811 modsumfzodifsn 13976 addmodlteq 13978 cshwidxm1 14840 cshimadifsn0 14863 fzomaxdiflem 15390 fzo0dvdseq 16376 fzocongeq 16377 addmodlteqALT 16378 efgsp1 19802 efgsres 19803 crctcshwlkn0lem2 30160 crctcshwlkn0lem3 30161 crctcshwlkn0lem5 30163 crctcshwlkn0lem6 30164 crctcshwlkn0 30170 crctcsh 30173 eucrctshift 30594 eucrct2eupth 30596 fzssfzo 34929 signsvfn 34969 dvnmul 46657 iblspltprt 46687 stoweidlem3 46717 fourierdlem12 46833 fourierdlem50 46870 fourierdlem64 46884 fourierdlem79 46899 ormkglobd 47591 natglobalincr 47593 chnerlem2 47599 nnmul2 48067 submodlt 48093 muldvdsfacgt 48123 muldvdsfacm1 48124 iccpartiltu 48171 iccpartgt 48176 bgoldbtbndlem2 48571 gpgedgvtx1 48827 |
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