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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 12871 | . . . 4 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → 𝐾 ∈ ℤ) | |
| 2 | eluzel2 12866 | . . . 4 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → 𝑀 ∈ ℤ) | |
| 3 | 1, 2 | jca 520 | . . 3 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → (𝐾 ∈ ℤ ∧ 𝑀 ∈ ℤ)) |
| 4 | elfz 13540 | . . . 4 ⊢ ((𝐾 ∈ ℤ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) | |
| 5 | 4 | 3expa 1134 | . . 3 ⊢ (((𝐾 ∈ ℤ ∧ 𝑀 ∈ ℤ) ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
| 6 | 3, 5 | sylan 591 | . 2 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
| 7 | eluzle 12874 | . . . 4 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → 𝑀 ≤ 𝐾) | |
| 8 | 7 | biantrurd 541 | . . 3 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → (𝐾 ≤ 𝑁 ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
| 9 | 8 | adantr 485 | . 2 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) → (𝐾 ≤ 𝑁 ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
| 10 | 6, 9 | bitr4d 285 | 1 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (𝑀...𝑁) ↔ 𝐾 ≤ 𝑁)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 ∈ wcel 2141 class class class wbr 5108 ‘cfv 6536 (class class class)co 7410 ≤ cle 11243 ℤcz 12590 ℤ≥cuz 12861 ...cfz 13534 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5256 ax-nul 5268 ax-pr 5404 ax-cnex 11155 ax-resscn 11156 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2095 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rab 3415 df-v 3455 df-sbc 3744 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-br 5109 df-opab 5173 df-mpt 5192 df-id 5556 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-fv 6544 df-ov 7413 df-oprab 7414 df-mpo 7415 df-neg 11443 df-z 12591 df-uz 12862 df-fz 13535 |
| This theorem is referenced by: fzsplit2 13576 fznn0sub2 13662 predfz 13680 bcval5 14353 hashf1 14493 seqcoll 14500 limsupgre 15531 isercolllem2 15716 isercoll 15718 fsumcvg3 15779 fsum0diaglem 15826 climcndslem2 15903 mertenslem1 15937 ncoprmlnprm 16786 pcfac 16958 prmreclem2 16976 prmreclem3 16977 prmreclem5 16979 1arith 16986 vdwlem1 17040 vdwlem3 17042 vdwlem10 17049 sylow1lem1 19667 psrbaglefi 22055 ovoliunlem1 25640 ovolicc2lem4 25658 uniioombllem3 25723 mbfi1fseqlem3 25855 plyeq0lem 26346 coeeulem 26360 coeidlem 26373 coeid3 26376 coeeq2 26378 coemulhi 26390 vieta1lem2 26451 birthdaylem2 27093 birthdaylem3 27094 ftalem5 27217 basellem2 27222 basellem3 27223 basellem5 27225 musum 27331 fsumvma2 27354 chpchtsum 27359 lgsne0 27475 lgsquadlem2 27521 rplogsumlem2 27625 dchrisumlem1 27629 dchrisum0lem1 27656 ostth2lem3 27775 eupth2lems 30555 fzsplit3 33104 eulerpartlems 34716 eulerpartlemb 34724 erdszelem7 35643 cvmliftlem7 35737 |
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