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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 4290 | . . 3 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵..^𝐶) ≠ ∅) | |
| 2 | fzof 13830 | . . . . . 6 ⊢ ..^:(ℤ × ℤ)⟶𝒫 ℤ | |
| 3 | 2 | fdmi 6751 | . . . . 5 ⊢ dom ..^ = (ℤ × ℤ) |
| 4 | 3 | ndmov 7637 | . . . 4 ⊢ (¬ (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵..^𝐶) = ∅) |
| 5 | 4 | necon1ai 2986 | . . 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 2147 ≠ wne 2959 ∅c0 4281 𝒫 cpw 4560 × cxp 5656 (class class class)co 7451 ℤcz 12733 ..^cfzo 13828 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5255 ax-nul 5266 ax-pr 5398 ax-un 7783 ax-cnex 11295 ax-resscn 11296 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-iun 4958 df-br 5109 df-opab 5174 df-mpt 5193 df-id 5553 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-fv 6574 df-ov 7454 df-oprab 7455 df-mpo 7456 df-1st 8035 df-2nd 8036 df-neg 11583 df-z 12734 df-uz 13006 df-fz 13680 df-fzo 13829 |
| This theorem is used by: elfzoelz 13833 elfzo2 13836 elfzole1 13842 elfzolt2 13843 elfzolt3 13844 elfzolt2b 13845 elfzolt3b 13846 elfzop1le2 13847 fzonel 13848 elfzouz2 13849 fzonnsub 13859 fzoss1 13861 fzospliti 13866 fzodisj 13868 elfzolem1 13879 elfzo0subge1 13880 elfzo0suble 13881 fzoaddel 13892 fzo0addelr 13894 elfzoextl 13896 elfzoext 13897 elincfzoext 13898 fzosubel 13899 fzoend 13932 ssfzo12 13934 fzoopth 13937 fzofzp1 13939 elfzo1elm1fzo0 13943 fzonfzoufzol 13946 elfznelfzob 13949 peano2fzor 13950 fzostep1 13961 modsumfzodifsn 14127 addmodlteq 14129 cshwidxm1 15000 cshimadifsn0 15023 fzomaxdiflem 15554 fzo0dvdseq 16537 fzocongeq 16538 addmodlteqALT 16539 efgsp1 20002 efgsres 20003 crctcshwlkn0lem2 30457 crctcshwlkn0lem3 30458 crctcshwlkn0lem5 30460 crctcshwlkn0lem6 30461 crctcshwlkn0 30467 crctcsh 30470 eucrctshift 30901 eucrct2eupth 30903 fzssfzo 35282 signsvfn 35322 dvnmul 47226 iblspltprt 47256 stoweidlem3 47286 fourierdlem12 47402 fourierdlem50 47439 fourierdlem64 47453 fourierdlem79 47468 ormkglobd 48160 chnerlem2 48166 nnmul2 48673 submodlt 48699 muldvdsfacgt 48729 muldvdsfacm1 48730 iccpartiltu 48777 iccpartgt 48782 bgoldbtbndlem2 49177 gpgedgvtx1 49433 |
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