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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 4287 | . . 3 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵..^𝐶) ≠ ∅) | |
| 2 | fzof 13783 | . . . . . 6 ⊢ ..^:(ℤ × ℤ)⟶𝒫 ℤ | |
| 3 | 2 | fdmi 6719 | . . . . 5 ⊢ dom ..^ = (ℤ × ℤ) |
| 4 | 3 | ndmov 7603 | . . . 4 ⊢ (¬ (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵..^𝐶) = ∅) |
| 5 | 4 | necon1ai 2983 | . . 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 2145 ≠ wne 2956 ∅c0 4279 𝒫 cpw 4557 × cxp 5649 (class class class)co 7418 ℤcz 12686 ..^cfzo 13781 |
| 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 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pr 5391 ax-un 7749 ax-cnex 11249 ax-resscn 11250 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-fv 6545 df-ov 7421 df-oprab 7422 df-mpo 7423 df-1st 7999 df-2nd 8000 df-neg 11537 df-z 12687 df-uz 12959 df-fz 13633 df-fzo 13782 |
| This theorem is used by: elfzoelz 13786 elfzo2 13789 elfzole1 13795 elfzolt2 13796 elfzolt3 13797 elfzolt2b 13798 elfzolt3b 13799 elfzop1le2 13800 fzonel 13801 elfzouz2 13802 fzonnsub 13812 fzoss1 13814 fzospliti 13819 fzodisj 13821 elfzolem1 13832 elfzo0subge1 13833 elfzo0suble 13834 fzoaddel 13845 fzo0addelr 13847 elfzoextl 13849 elfzoext 13850 elincfzoext 13851 fzosubel 13852 fzoend 13885 ssfzo12 13887 fzoopth 13890 fzofzp1 13892 elfzo1elm1fzo0 13896 fzonfzoufzol 13899 elfznelfzob 13902 peano2fzor 13903 fzostep1 13914 modsumfzodifsn 14080 addmodlteq 14082 cshwidxm1 14951 cshimadifsn0 14974 fzomaxdiflem 15503 fzo0dvdseq 16486 fzocongeq 16487 addmodlteqALT 16488 efgsp1 19944 efgsres 19945 crctcshwlkn0lem2 30393 crctcshwlkn0lem3 30394 crctcshwlkn0lem5 30396 crctcshwlkn0lem6 30397 crctcshwlkn0 30403 crctcsh 30406 eucrctshift 30837 eucrct2eupth 30839 fzssfzo 35164 signsvfn 35204 dvnmul 46922 iblspltprt 46952 stoweidlem3 46982 fourierdlem12 47098 fourierdlem50 47135 fourierdlem64 47149 fourierdlem79 47164 ormkglobd 47856 chnerlem2 47862 nnmul2 48369 submodlt 48395 muldvdsfacgt 48425 muldvdsfacm1 48426 iccpartiltu 48473 iccpartgt 48478 bgoldbtbndlem2 48873 gpgedgvtx1 49129 |
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