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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 13570 | . 2 ⊢ (𝐾 ∈ (𝑀...𝑁) ↔ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ) ∧ (𝑀 ≤ 𝐾 ∧ 𝐾 ≤ 𝑁))) | |
| 10 | eluz2 12896 | . . 3 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) ↔ (𝑀 ∈ ℤ ∧ 𝐾 ∈ ℤ ∧ 𝑀 ≤ 𝐾)) | |
| 11 | eluz2 12896 | . . 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 5107 ‘cfv 6537 (class class class)co 7416 ≤ cle 11271 ℤcz 12618 ℤ≥cuz 12890 ...cfz 13563 |
| 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 2215 ax-ext 2734 ax-sep 5255 ax-nul 5267 ax-pr 5402 ax-un 7739 ax-cnex 11183 ax-resscn 11184 |
| 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 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 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-id 5554 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-fv 6545 df-ov 7419 df-oprab 7420 df-mpo 7421 df-1st 7989 df-2nd 7990 df-neg 11471 df-z 12619 df-uz 12891 df-fz 13564 |
| This theorem is used by: eluzfz 13575 elfzuz 13576 elfzuz3 13577 elfzuz2 13585 peano2fzr 13593 fzsplit2 13606 fzass4 13619 fzss1 13620 fzss2 13621 fzp1elp1 13634 fznn 13649 elfz2nn0 13675 elfzofz 13733 fzosplitsnm1 13798 fzofzp1b 13823 fzosplitsn 13834 seqcl2 14086 seqfveq2 14090 monoord 14098 seqid2 14114 bcn1 14379 fz1isolem 14528 seqcoll 14531 ccatrn 14657 swrds1 14738 swrdccat2 14741 spllen 14825 splfv2a 14827 splval2 14828 caubnd 15448 isercolllem2 15755 isercolllem3 15756 summolem2a 15803 fsum0diag2 15871 climcndslem1 15940 mertenslem1 15975 prodmolem2a 16025 vdwlem2 17078 vdwlem8 17084 gexcl3 19715 efginvrel2 19855 efgredleme 19871 efgcpbllemb 19883 1stckgenlem 23780 imasdsf1olem 24600 iscmet3lem1 25520 dvtaylp 26603 mtest 26637 ppisval 27338 ppisval2 27339 chtdif 27392 ppidif 27397 logfaclbnd 27456 bposlem4 27521 dchrisumlem2 27724 pntpbnd1 27820 fzsplit3 33251 mettrifi 38494 monoordxrv 46296 smonoord 48252 |
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