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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 1104 | . . 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 1473 | . . 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 1104 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) ↔ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ 𝐾 ∈ ℤ)) | |
| 4 | anandir 689 | . . . . 5 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ 𝐾 ∈ ℤ) ↔ ((𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ))) | |
| 5 | an43 670 | . . . . 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 635 | . . 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 13548 | . 2 ⊢ (𝐾 ∈ (𝑀...𝑁) ↔ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) | |
| 10 | eluz2 12874 | . . 3 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) ↔ (𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ ∧ 𝑀 ≤ 𝐾)) | |
| 11 | eluz2 12874 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) ↔ (𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ≤ 𝑁)) | |
| 12 | 10, 11 | anbi12i 639 | . 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 400 ∧ w3a 1102 ∈ wcel 2142 class class class wbr 5108 ‘cfv 6536 (class class class)co 7412 ≤ cle 11250 ℤcz 12597 ℤ≥cuz 12868 ...cfz 13541 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5256 ax-nul 5268 ax-pr 5403 ax-un 7734 ax-cnex 11162 ax-resscn 11163 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1103 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3079 df-rex 3089 df-rab 3416 df-v 3456 df-sbc 3744 df-csb 3853 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-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-id 5555 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-rn 5671 df-res 5672 df-ima 5673 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-fv 6544 df-ov 7415 df-oprab 7416 df-mpo 7417 df-1st 7984 df-2nd 7985 df-neg 11450 df-z 12598 df-uz 12869 df-fz 13542 |
| This theorem is used by: eluzfz 13553 elfzuz 13554 elfzuz3 13555 elfzuz2 13563 peano2fzr 13571 fzsplit2 13584 fzass4 13597 fzss1 13598 fzss2 13599 fzp1elp1 13612 fznn 13627 elfz2nn0 13653 elfzofz 13711 fzosplitsnm1 13776 fzofzp1b 13801 fzosplitsn 13812 seqcl2 14063 seqfveq2 14067 monoord 14075 seqid2 14091 bcn1 14356 fz1isolem 14505 seqcoll 14508 ccatrn 14634 swrds1 14711 swrdccat2 14714 spllen 14798 splfv2a 14800 splval2 14801 caubnd 15417 isercolllem2 15724 isercolllem3 15725 summolem2a 15773 fsum0diag2 15841 climcndslem1 15910 mertenslem1 15945 prodmolem2a 15995 vdwlem2 17048 vdwlem8 17054 gexcl3 19663 efginvrel2 19803 efgredleme 19819 efgcpbllemb 19831 1stckgenlem 23721 imasdsf1olem 24541 iscmet3lem1 25461 dvtaylp 26544 mtest 26578 ppisval 27279 ppisval2 27280 chtdif 27333 ppidif 27338 logfaclbnd 27397 bposlem4 27462 dchrisumlem2 27665 pntpbnd1 27761 fzsplit3 33149 mettrifi 38436 monoordxrv 46223 smonoord 48142 |
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