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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 12763 | . . . 4 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → 𝐾 ∈ ℤ) | |
| 2 | eluzel2 12758 | . . . 4 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → 𝑀 ∈ ℤ) | |
| 3 | 1, 2 | jca 511 | . . 3 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → (𝐾 ∈ ℤ ∧ 𝑀 ∈ ℤ)) |
| 4 | elfz 13431 | . . . 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 12766 | . . . 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 5097 ‘cfv 6491 (class class class)co 7358 ≤ cle 11169 ℤcz 12490 ℤ≥cuz 12753 ...cfz 13425 |
| 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 2183 ax-ext 2707 ax-sep 5240 ax-nul 5250 ax-pr 5376 ax-cnex 11084 ax-resscn 11085 |
| 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 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2932 df-ral 3051 df-rex 3060 df-rab 3399 df-v 3441 df-sbc 3740 df-dif 3903 df-un 3905 df-in 3907 df-ss 3917 df-nul 4285 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-br 5098 df-opab 5160 df-mpt 5179 df-id 5518 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-iota 6447 df-fun 6493 df-fn 6494 df-f 6495 df-fv 6499 df-ov 7361 df-oprab 7362 df-mpo 7363 df-neg 11369 df-z 12491 df-uz 12754 df-fz 13426 |
| This theorem is referenced by: fzsplit2 13467 fznn0sub2 13553 predfz 13571 bcval5 14243 hashf1 14382 seqcoll 14389 limsupgre 15406 isercolllem2 15591 isercoll 15593 fsumcvg3 15654 fsum0diaglem 15701 climcndslem2 15775 mertenslem1 15809 ncoprmlnprm 16657 pcfac 16829 prmreclem2 16847 prmreclem3 16848 prmreclem5 16850 1arith 16857 vdwlem1 16911 vdwlem3 16913 vdwlem10 16920 sylow1lem1 19529 psrbaglefi 21884 ovoliunlem1 25461 ovolicc2lem4 25479 uniioombllem3 25544 mbfi1fseqlem3 25676 plyeq0lem 26173 coeeulem 26187 coeidlem 26200 coeid3 26203 coeeq2 26205 coemulhi 26217 vieta1lem2 26277 birthdaylem2 26920 birthdaylem3 26921 ftalem5 27045 basellem2 27050 basellem3 27051 basellem5 27053 musum 27159 fsumvma2 27183 chpchtsum 27188 lgsne0 27304 lgsquadlem2 27350 rplogsumlem2 27454 dchrisumlem1 27458 dchrisum0lem1 27485 ostth2lem3 27604 eupth2lems 30294 fzsplit3 32852 eulerpartlems 34496 eulerpartlemb 34504 erdszelem7 35370 cvmliftlem7 35464 |
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