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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 13701 | . . . . . 6 ⊢ ..^:(ℤ × ℤ)⟶𝒫 ℤ | |
| 3 | 2 | fdmi 6721 | . . . . 5 ⊢ dom ..^ = (ℤ × ℤ) |
| 4 | 3 | ndmov 7604 | . . . 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 501 | 1 ⊢ (𝐴 ∈ (𝐵..^𝐶) → 𝐶 ∈ ℤ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2146 ≠ wne 2960 ∅c0 4286 𝒫 cpw 4564 × cxp 5661 (class class class)co 7419 ℤcz 12606 ..^cfzo 13699 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pr 5406 ax-un 7742 ax-cnex 11171 ax-resscn 11172 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3082 df-rex 3092 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-fv 6548 df-ov 7422 df-oprab 7423 df-mpo 7424 df-1st 7992 df-2nd 7993 df-neg 11459 df-z 12607 df-uz 12879 df-fz 13552 df-fzo 13700 |
| This theorem is used by: elfzoelz 13704 elfzo2 13707 elfzole1 13713 elfzolt2 13714 elfzolt3 13715 elfzolt2b 13716 elfzolt3b 13717 elfzop1le2 13718 fzonel 13719 elfzouz2 13720 fzonnsub 13730 fzoss1 13732 fzospliti 13737 fzodisj 13739 elfzolem1 13750 elfzo0subge1 13751 elfzo0suble 13752 fzoaddel 13763 fzo0addelr 13765 elfzoextl 13767 elfzoext 13768 elincfzoext 13769 fzosubel 13770 fzoend 13803 ssfzo12 13805 fzoopth 13808 fzofzp1 13810 elfzo1elm1fzo0 13814 fzonfzoufzol 13817 elfznelfzob 13820 peano2fzor 13821 fzostep1 13832 modsumfzodifsn 13998 addmodlteq 14000 cshwidxm1 14868 cshimadifsn0 14891 fzomaxdiflem 15418 fzo0dvdseq 16403 fzocongeq 16404 addmodlteqALT 16405 efgsp1 19851 efgsres 19852 crctcshwlkn0lem2 30227 crctcshwlkn0lem3 30228 crctcshwlkn0lem5 30230 crctcshwlkn0lem6 30231 crctcshwlkn0 30237 crctcsh 30240 eucrctshift 30665 eucrct2eupth 30667 fzssfzo 34994 signsvfn 35034 dvnmul 46715 iblspltprt 46745 stoweidlem3 46775 fourierdlem12 46891 fourierdlem50 46928 fourierdlem64 46942 fourierdlem79 46957 ormkglobd 47649 natglobalincr 47651 chnerlem2 47657 nnmul2 48125 submodlt 48151 muldvdsfacgt 48181 muldvdsfacm1 48182 iccpartiltu 48229 iccpartgt 48234 bgoldbtbndlem2 48629 gpgedgvtx1 48885 |
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