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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 4286 | . . 3 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵..^𝐶) ≠ ∅) | |
| 2 | fzof 13797 | . . . . . 6 ⊢ ..^:(ℤ × ℤ)⟶𝒫 ℤ | |
| 3 | 2 | fdmi 6726 | . . . . 5 ⊢ dom ..^ = (ℤ × ℤ) |
| 4 | 3 | ndmov 7609 | . . . 4 ⊢ (¬ (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵..^𝐶) = ∅) |
| 5 | 4 | necon1ai 2982 | . . 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 2144 ≠ wne 2955 ∅c0 4277 𝒫 cpw 4556 × cxp 5649 (class class class)co 7424 ℤcz 12700 ..^cfzo 13795 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5391 ax-un 7755 ax-cnex 11263 ax-resscn 11264 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 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 6497 df-fun 6545 df-fn 6546 df-f 6547 df-fv 6551 df-ov 7427 df-oprab 7428 df-mpo 7429 df-1st 8005 df-2nd 8006 df-neg 11551 df-z 12701 df-uz 12973 df-fz 13647 df-fzo 13796 |
| This theorem is used by: elfzoelz 13800 elfzo2 13803 elfzole1 13809 elfzolt2 13810 elfzolt3 13811 elfzolt2b 13812 elfzolt3b 13813 elfzop1le2 13814 fzonel 13815 elfzouz2 13816 fzonnsub 13826 fzoss1 13828 fzospliti 13833 fzodisj 13835 elfzolem1 13846 elfzo0subge1 13847 elfzo0suble 13848 fzoaddel 13859 fzo0addelr 13861 elfzoextl 13863 elfzoext 13864 elincfzoext 13865 fzosubel 13866 fzoend 13899 ssfzo12 13901 fzoopth 13904 fzofzp1 13906 elfzo1elm1fzo0 13910 fzonfzoufzol 13913 elfznelfzob 13916 peano2fzor 13917 fzostep1 13928 modsumfzodifsn 14094 addmodlteq 14096 cshwidxm1 14966 cshimadifsn0 14989 fzomaxdiflem 15519 fzo0dvdseq 16502 fzocongeq 16503 addmodlteqALT 16504 efgsp1 19960 efgsres 19961 crctcshwlkn0lem2 30409 crctcshwlkn0lem3 30410 crctcshwlkn0lem5 30412 crctcshwlkn0lem6 30413 crctcshwlkn0 30419 crctcsh 30422 eucrctshift 30853 eucrct2eupth 30855 fzssfzo 35221 signsvfn 35261 dvnmul 47061 iblspltprt 47091 stoweidlem3 47121 fourierdlem12 47237 fourierdlem50 47274 fourierdlem64 47288 fourierdlem79 47303 ormkglobd 47995 chnerlem2 48001 nnmul2 48508 submodlt 48534 muldvdsfacgt 48564 muldvdsfacm1 48565 iccpartiltu 48612 iccpartgt 48617 bgoldbtbndlem2 49012 gpgedgvtx1 49268 |
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