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| Mirrors > Home > MPE Home > Th. List > elfz5 | Structured version Visualization version GIF version | ||
| Description: Membership in a finite set of sequential integers. (Contributed by NM, 26-Dec-2005.) |
| Ref | Expression |
|---|---|
| elfz5 | ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ 𝐾 ≤ 𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eluzelz 12795 | . . . 4 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → 𝐾 ∈ ℤ) | |
| 2 | eluzel2 12790 | . . . 4 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → 𝑀 ∈ ℤ) | |
| 3 | 1, 2 | jca 511 | . . 3 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → (𝐾 ∈ ℤ ∧ 𝑀 ∈ ℤ)) |
| 4 | elfz 13464 | . . . 4 ⊢ ((𝐾 ∈ ℤ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) | |
| 5 | 4 | 3expa 1119 | . . 3 ⊢ (((𝐾 ∈ ℤ ∧ 𝑀 ∈ ℤ) ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
| 6 | 3, 5 | sylan 581 | . 2 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
| 7 | eluzle 12798 | . . . 4 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → 𝑀 ≤ 𝐾) | |
| 8 | 7 | biantrurd 532 | . . 3 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → (𝐾 ≤ 𝑁 ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
| 9 | 8 | adantr 480 | . 2 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) → (𝐾 ≤ 𝑁 ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
| 10 | 6, 9 | bitr4d 282 | 1 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ 𝐾 ≤ 𝑁)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∈ wcel 2114 class class class wbr 5086 ‘cfv 6496 (class class class)co 7364 ≤ cle 11177 ℤcz 12521 ℤ≥cuz 12785 ...cfz 13458 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pr 5374 ax-cnex 11091 ax-resscn 11092 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-sbc 3730 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5523 df-xp 5634 df-rel 5635 df-cnv 5636 df-co 5637 df-dm 5638 df-rn 5639 df-res 5640 df-ima 5641 df-iota 6452 df-fun 6498 df-fn 6499 df-f 6500 df-fv 6504 df-ov 7367 df-oprab 7368 df-mpo 7369 df-neg 11377 df-z 12522 df-uz 12786 df-fz 13459 |
| This theorem is referenced by: fzsplit2 13500 fznn0sub2 13586 predfz 13604 bcval5 14277 hashf1 14416 seqcoll 14423 limsupgre 15440 isercolllem2 15625 isercoll 15627 fsumcvg3 15688 fsum0diaglem 15735 climcndslem2 15812 mertenslem1 15846 ncoprmlnprm 16695 pcfac 16867 prmreclem2 16885 prmreclem3 16886 prmreclem5 16888 1arith 16895 vdwlem1 16949 vdwlem3 16951 vdwlem10 16958 sylow1lem1 19570 psrbaglefi 21922 ovoliunlem1 25485 ovolicc2lem4 25503 uniioombllem3 25568 mbfi1fseqlem3 25700 plyeq0lem 26191 coeeulem 26205 coeidlem 26218 coeid3 26221 coeeq2 26223 coemulhi 26235 vieta1lem2 26294 birthdaylem2 26935 birthdaylem3 26936 ftalem5 27060 basellem2 27065 basellem3 27066 basellem5 27068 musum 27174 fsumvma2 27197 chpchtsum 27202 lgsne0 27318 lgsquadlem2 27364 rplogsumlem2 27468 dchrisumlem1 27472 dchrisum0lem1 27499 ostth2lem3 27618 eupth2lems 30329 fzsplit3 32887 eulerpartlems 34526 eulerpartlemb 34534 erdszelem7 35401 cvmliftlem7 35495 |
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