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Mirrors > Home > MPE Home > Th. List > elfz | Structured version Visualization version GIF version |
Description: Membership in a finite set of sequential integers. (Contributed by NM, 29-Sep-2005.) |
Ref | Expression |
---|---|
elfz | ⊢ ((𝐾 ∈ ℤ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfz1 13244 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ (𝐾 ∈ ℤ ∧ 𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) | |
2 | 3anass 1094 | . . . . 5 ⊢ ((𝐾 ∈ ℤ ∧ 𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁) ↔ (𝐾 ∈ ℤ ∧ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) | |
3 | 2 | baib 536 | . . . 4 ⊢ (𝐾 ∈ ℤ → ((𝐾 ∈ ℤ ∧ 𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁) ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
4 | 1, 3 | sylan9bb 510 | . . 3 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ 𝐾 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
5 | 4 | 3impa 1109 | . 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
6 | 5 | 3comr 1124 | 1 ⊢ ((𝐾 ∈ ℤ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∧ w3a 1086 ∈ wcel 2106 class class class wbr 5074 (class class class)co 7275 ≤ cle 11010 ℤcz 12319 ...cfz 13239 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pr 5352 ax-cnex 10927 ax-resscn 10928 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ral 3069 df-rex 3070 df-rab 3073 df-v 3434 df-sbc 3717 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-nul 4257 df-if 4460 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-br 5075 df-opab 5137 df-id 5489 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-iota 6391 df-fun 6435 df-fv 6441 df-ov 7278 df-oprab 7279 df-mpo 7280 df-neg 11208 df-z 12320 df-fz 13240 |
This theorem is referenced by: elfz5 13248 fzadd2 13291 fznatpl1 13310 fzrev 13319 fzctr 13368 elfzo 13389 pfxccat3a 14451 isprm3 16388 eulerthlem2 16483 aannenlem1 25488 chtub 26360 bposlem1 26432 2lgslem1a 26539 axlowdimlem3 27312 axlowdimlem7 27316 axlowdimlem16 27325 axlowdimlem17 27326 axlowdim 27329 lmatfvlem 31765 bcneg1 33702 poimirlem15 35792 poimirlem24 35801 poimirlem28 35805 mblfinlem2 35815 fzmul 35899 cntotbnd 35954 sticksstones12 40114 pellexlem5 40655 acongrep 40802 fzneg 40804 stoweidlem26 43567 smfmullem4 44328 |
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