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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 13029 | . . . . . 6 ⊢ ..^:(ℤ × ℤ)⟶𝒫 ℤ | |
3 | 2 | fdmi 6518 | . . . . 5 ⊢ dom ..^ = (ℤ × ℤ) |
4 | 3 | ndmov 7326 | . . . 4 ⊢ (¬ (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵..^𝐶) = ∅) |
5 | 4 | necon1ai 3043 | . . 3 ⊢ ((𝐵..^𝐶) ≠ ∅ → (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ)) |
6 | 1, 5 | syl 17 | . 2 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ)) |
7 | 6 | simprd 498 | 1 ⊢ (𝐴 ∈ (𝐵..^𝐶) → 𝐶 ∈ ℤ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 ∈ wcel 2110 ≠ wne 3016 ∅c0 4290 𝒫 cpw 4538 × cxp 5547 (class class class)co 7150 ℤcz 11975 ..^cfzo 13027 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 ax-cnex 10587 ax-resscn 10588 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-iun 4913 df-br 5059 df-opab 5121 df-mpt 5139 df-id 5454 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-fv 6357 df-ov 7153 df-oprab 7154 df-mpo 7155 df-1st 7683 df-2nd 7684 df-neg 10867 df-z 11976 df-uz 12238 df-fz 12887 df-fzo 13028 |
This theorem is referenced by: elfzoelz 13032 elfzo2 13035 elfzole1 13040 elfzolt2 13041 elfzolt3 13042 elfzolt2b 13043 elfzolt3b 13044 fzonel 13045 elfzouz2 13046 fzonnsub 13056 fzoss1 13058 fzospliti 13063 fzodisj 13065 fzoaddel 13084 fzo0addelr 13086 elfzoext 13088 elincfzoext 13089 fzosubel 13090 fzoend 13122 ssfzo12 13124 fzofzp1 13128 elfzo1elm1fzo0 13132 fzonfzoufzol 13134 elfznelfzob 13137 peano2fzor 13138 fzostep1 13147 modsumfzodifsn 13306 addmodlteq 13308 cshwidxm1 14163 cshimadifsn0 14186 fzomaxdiflem 14696 fzo0dvdseq 15667 fzocongeq 15668 addmodlteqALT 15669 efgsp1 18857 efgsres 18858 crctcshwlkn0lem2 27583 crctcshwlkn0lem3 27584 crctcshwlkn0lem5 27586 crctcshwlkn0lem6 27587 crctcshwlkn0 27593 crctcsh 27596 eucrctshift 28016 eucrct2eupth 28018 fzssfzo 31804 signsvfn 31847 elfzop1le2 41549 elfzolem1 41582 dvnmul 42221 iblspltprt 42251 stoweidlem3 42282 fourierdlem12 42398 fourierdlem50 42435 fourierdlem64 42449 fourierdlem79 42464 fzoopth 43521 iccpartiltu 43576 iccpartgt 43581 bgoldbtbndlem2 43965 |
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