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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 4300 | . . 3 ⊢ (𝐴 ∈ (𝐵..^𝐶) → (𝐵..^𝐶) ≠ ∅) | |
2 | fzof 13036 | . . . . . 6 ⊢ ..^:(ℤ × ℤ)⟶𝒫 ℤ | |
3 | 2 | fdmi 6524 | . . . . 5 ⊢ dom ..^ = (ℤ × ℤ) |
4 | 3 | ndmov 7332 | . . . 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 2114 ≠ wne 3016 ∅c0 4291 𝒫 cpw 4539 × cxp 5553 (class class class)co 7156 ℤcz 11982 ..^cfzo 13034 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 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 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-fv 6363 df-ov 7159 df-oprab 7160 df-mpo 7161 df-1st 7689 df-2nd 7690 df-neg 10873 df-z 11983 df-uz 12245 df-fz 12894 df-fzo 13035 |
This theorem is referenced by: elfzoelz 13039 elfzo2 13042 elfzole1 13047 elfzolt2 13048 elfzolt3 13049 elfzolt2b 13050 elfzolt3b 13051 fzonel 13052 elfzouz2 13053 fzonnsub 13063 fzoss1 13065 fzospliti 13070 fzodisj 13072 fzoaddel 13091 fzo0addelr 13093 elfzoext 13095 elincfzoext 13096 fzosubel 13097 fzoend 13129 ssfzo12 13131 fzofzp1 13135 elfzo1elm1fzo0 13139 fzonfzoufzol 13141 elfznelfzob 13144 peano2fzor 13145 fzostep1 13154 modsumfzodifsn 13313 addmodlteq 13315 cshwidxm1 14169 cshimadifsn0 14192 fzomaxdiflem 14702 fzo0dvdseq 15673 fzocongeq 15674 addmodlteqALT 15675 efgsp1 18863 efgsres 18864 crctcshwlkn0lem2 27589 crctcshwlkn0lem3 27590 crctcshwlkn0lem5 27592 crctcshwlkn0lem6 27593 crctcshwlkn0 27599 crctcsh 27602 eucrctshift 28022 eucrct2eupth 28024 fzssfzo 31809 signsvfn 31852 elfzop1le2 41576 elfzolem1 41609 dvnmul 42248 iblspltprt 42278 stoweidlem3 42308 fourierdlem12 42424 fourierdlem50 42461 fourierdlem64 42475 fourierdlem79 42490 fzoopth 43547 iccpartiltu 43602 iccpartgt 43607 bgoldbtbndlem2 43991 |
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