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| Mirrors > Home > MPE Home > Th. List > elfzuzb | Structured version Visualization version GIF version | ||
| Description: Membership in a finite set of sequential integers in terms of sets of upper integers. (Contributed by NM, 18-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
| Ref | Expression |
|---|---|
| elfzuzb | ⊢ (𝐾 ∈ (𝑀...𝑁) ↔ (𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ (ℤ≥‘𝐾))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-3an 1105 | . . 3 ⊢ (((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁)) ↔ (((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ)) ∧ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) | |
| 2 | an6 1474 | . . 3 ⊢ (((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ ∧ 𝑀 ≤ 𝐾) ∧ (𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ≤ 𝑁)) ↔ ((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) | |
| 3 | df-3an 1105 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) ↔ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ 𝐾 ∈ ℤ)) | |
| 4 | anandir 690 | . . . . 5 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ 𝐾 ∈ ℤ) ↔ ((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ))) | |
| 5 | an43 671 | . . . . 5 ⊢ (((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ)) ↔ ((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ))) | |
| 6 | 3, 4, 5 | 3bitri 300 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) ↔ ((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ))) |
| 7 | 6 | anbi1i 636 | . . 3 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁)) ↔ (((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ)) ∧ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) |
| 8 | 1, 2, 7 | 3bitr4ri 307 | . 2 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁)) ↔ ((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ ∧ 𝑀 ≤ 𝐾) ∧ (𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ≤ 𝑁))) |
| 9 | elfz2 13615 | . 2 ⊢ (𝐾 ∈ (𝑀...𝑁) ↔ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) | |
| 10 | eluz2 12940 | . . 3 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) ↔ (𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ ∧ 𝑀 ≤ 𝐾)) | |
| 11 | eluz2 12940 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) ↔ (𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ≤ 𝑁)) | |
| 12 | 10, 11 | anbi12i 640 | . 2 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ (ℤ≥‘𝐾)) ↔ ((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ ∧ 𝑀 ≤ 𝐾) ∧ (𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ≤ 𝑁))) |
| 13 | 8, 9, 12 | 3bitr4i 306 | 1 ⊢ (𝐾 ∈ (𝑀...𝑁) ↔ (𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ (ℤ≥‘𝐾))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∧ wa 401 ∧ w3a 1103 ∈ wcel 2145 class class class wbr 5102 ‘cfv 6527 (class class class)co 7408 ≤ cle 11315 ℤcz 12662 ℤ≥cuz 12934 ...cfz 13608 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5390 ax-un 7734 ax-cnex 11227 ax-resscn 11228 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5542 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-iota 6483 df-fun 6529 df-fn 6530 df-f 6531 df-fv 6535 df-ov 7411 df-oprab 7412 df-mpo 7413 df-1st 7984 df-2nd 7985 df-neg 11515 df-z 12663 df-uz 12935 df-fz 13609 |
| This theorem is used by: eluzfz 13620 elfzuz 13621 elfzuz3 13622 elfzuz2 13630 peano2fzr 13638 fzsplit2 13651 fzass4 13664 fzss1 13665 fzss2 13666 fzp1elp1 13679 fznn 13694 elfz2nn0 13720 elfzofz 13778 fzosplitsnm1 13843 fzofzp1b 13868 fzosplitsn 13879 seqcl2 14131 seqfveq2 14135 monoord 14143 seqid2 14159 bcn1 14424 fz1isolem 14573 seqcoll 14576 ccatrn 14702 swrds1 14783 swrdccat2 14786 spllen 14870 splfv2a 14872 splval2 14873 caubnd 15493 isercolllem2 15800 isercolllem3 15801 summolem2a 15848 fsum0diag2 15916 climcndslem1 15985 mertenslem1 16020 prodmolem2a 16068 vdwlem2 17121 vdwlem8 17127 gexcl3 19762 efginvrel2 19902 efgredleme 19918 efgcpbllemb 19930 1stckgenlem 23833 imasdsf1olem 24653 iscmet3lem1 25573 dvtaylp 26660 mtest 26694 ppisval 27394 ppisval2 27395 chtdif 27448 ppidif 27453 logfaclbnd 27512 bposlem4 27577 dchrisumlem2 27780 pntpbnd1 27876 fzsplit3 33318 mettrifi 38611 monoordxrv 46413 smonoord 48369 |
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