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Mirrors > Home > MPE Home > Th. List > elfzonelfzo | Structured version Visualization version GIF version |
Description: If an element of a half-open integer range is not contained in the lower subrange, it must be in the upper subrange. (Contributed by Alexander van der Vekens, 30-Mar-2018.) |
Ref | Expression |
---|---|
elfzonelfzo | ⊢ (𝑁 ∈ ℤ → ((𝐾 ∈ (𝑀..^𝑅) ∧ ¬ 𝐾 ∈ (𝑀..^𝑁)) → 𝐾 ∈ (𝑁..^𝑅))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfzo2 13319 | . . 3 ⊢ (𝐾 ∈ (𝑀..^𝑅) ↔ (𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅)) | |
2 | simpr 484 | . . . . . 6 ⊢ ((((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅) ∧ ¬ 𝐾 ∈ (𝑀..^𝑁)) ∧ 𝑁 ∈ ℤ) → 𝑁 ∈ ℤ) | |
3 | eluzelz 12521 | . . . . . . . 8 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → 𝐾 ∈ ℤ) | |
4 | 3 | 3ad2ant1 1131 | . . . . . . 7 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅) → 𝐾 ∈ ℤ) |
5 | 4 | ad2antrr 722 | . . . . . 6 ⊢ ((((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅) ∧ ¬ 𝐾 ∈ (𝑀..^𝑁)) ∧ 𝑁 ∈ ℤ) → 𝐾 ∈ ℤ) |
6 | eluzelre 12522 | . . . . . . . . . . . . 13 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → 𝐾 ∈ ℝ) | |
7 | zre 12253 | . . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℝ) | |
8 | ltnle 10985 | . . . . . . . . . . . . 13 ⊢ ((𝐾 ∈ ℝ ∧ 𝑁 ∈ ℝ) → (𝐾 < 𝑁 ↔ ¬ 𝑁 ≤ 𝐾)) | |
9 | 6, 7, 8 | syl2an 595 | . . . . . . . . . . . 12 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) → (𝐾 < 𝑁 ↔ ¬ 𝑁 ≤ 𝐾)) |
10 | id 22 | . . . . . . . . . . . . . . 15 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ ∧ 𝐾 < 𝑁) → (𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ ∧ 𝐾 < 𝑁)) | |
11 | 10 | 3expa 1116 | . . . . . . . . . . . . . 14 ⊢ (((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) ∧ 𝐾 < 𝑁) → (𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ ∧ 𝐾 < 𝑁)) |
12 | elfzo2 13319 | . . . . . . . . . . . . . 14 ⊢ (𝐾 ∈ (𝑀..^𝑁) ↔ (𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ ∧ 𝐾 < 𝑁)) | |
13 | 11, 12 | sylibr 233 | . . . . . . . . . . . . 13 ⊢ (((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) ∧ 𝐾 < 𝑁) → 𝐾 ∈ (𝑀..^𝑁)) |
14 | 13 | ex 412 | . . . . . . . . . . . 12 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) → (𝐾 < 𝑁 → 𝐾 ∈ (𝑀..^𝑁))) |
15 | 9, 14 | sylbird 259 | . . . . . . . . . . 11 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) → (¬ 𝑁 ≤ 𝐾 → 𝐾 ∈ (𝑀..^𝑁))) |
16 | 15 | con1d 145 | . . . . . . . . . 10 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑁 ∈ ℤ) → (¬ 𝐾 ∈ (𝑀..^𝑁) → 𝑁 ≤ 𝐾)) |
17 | 16 | ex 412 | . . . . . . . . 9 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → (𝑁 ∈ ℤ → (¬ 𝐾 ∈ (𝑀..^𝑁) → 𝑁 ≤ 𝐾))) |
18 | 17 | com23 86 | . . . . . . . 8 ⊢ (𝐾 ∈ (ℤ≥‘𝑀) → (¬ 𝐾 ∈ (𝑀..^𝑁) → (𝑁 ∈ ℤ → 𝑁 ≤ 𝐾))) |
19 | 18 | 3ad2ant1 1131 | . . . . . . 7 ⊢ ((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅) → (¬ 𝐾 ∈ (𝑀..^𝑁) → (𝑁 ∈ ℤ → 𝑁 ≤ 𝐾))) |
20 | 19 | imp31 417 | . . . . . 6 ⊢ ((((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅) ∧ ¬ 𝐾 ∈ (𝑀..^𝑁)) ∧ 𝑁 ∈ ℤ) → 𝑁 ≤ 𝐾) |
21 | eluz2 12517 | . . . . . 6 ⊢ (𝐾 ∈ (ℤ≥‘𝑁) ↔ (𝑁 ∈ ℤ ∧ 𝐾 ∈ ℤ ∧ 𝑁 ≤ 𝐾)) | |
22 | 2, 5, 20, 21 | syl3anbrc 1341 | . . . . 5 ⊢ ((((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅) ∧ ¬ 𝐾 ∈ (𝑀..^𝑁)) ∧ 𝑁 ∈ ℤ) → 𝐾 ∈ (ℤ≥‘𝑁)) |
23 | simpll2 1211 | . . . . 5 ⊢ ((((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅) ∧ ¬ 𝐾 ∈ (𝑀..^𝑁)) ∧ 𝑁 ∈ ℤ) → 𝑅 ∈ ℤ) | |
24 | simpll3 1212 | . . . . 5 ⊢ ((((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅) ∧ ¬ 𝐾 ∈ (𝑀..^𝑁)) ∧ 𝑁 ∈ ℤ) → 𝐾 < 𝑅) | |
25 | elfzo2 13319 | . . . . 5 ⊢ (𝐾 ∈ (𝑁..^𝑅) ↔ (𝐾 ∈ (ℤ≥‘𝑁) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅)) | |
26 | 22, 23, 24, 25 | syl3anbrc 1341 | . . . 4 ⊢ ((((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅) ∧ ¬ 𝐾 ∈ (𝑀..^𝑁)) ∧ 𝑁 ∈ ℤ) → 𝐾 ∈ (𝑁..^𝑅)) |
27 | 26 | ex 412 | . . 3 ⊢ (((𝐾 ∈ (ℤ≥‘𝑀) ∧ 𝑅 ∈ ℤ ∧ 𝐾 < 𝑅) ∧ ¬ 𝐾 ∈ (𝑀..^𝑁)) → (𝑁 ∈ ℤ → 𝐾 ∈ (𝑁..^𝑅))) |
28 | 1, 27 | sylanb 580 | . 2 ⊢ ((𝐾 ∈ (𝑀..^𝑅) ∧ ¬ 𝐾 ∈ (𝑀..^𝑁)) → (𝑁 ∈ ℤ → 𝐾 ∈ (𝑁..^𝑅))) |
29 | 28 | com12 32 | 1 ⊢ (𝑁 ∈ ℤ → ((𝐾 ∈ (𝑀..^𝑅) ∧ ¬ 𝐾 ∈ (𝑀..^𝑁)) → 𝐾 ∈ (𝑁..^𝑅))) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 395 ∧ w3a 1085 ∈ wcel 2108 class class class wbr 5070 ‘cfv 6418 (class class class)co 7255 ℝcr 10801 < clt 10940 ≤ cle 10941 ℤcz 12249 ℤ≥cuz 12511 ..^cfzo 13311 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-n0 12164 df-z 12250 df-uz 12512 df-fz 13169 df-fzo 13312 |
This theorem is referenced by: fzonfzoufzol 13418 pfxccatin12lem4 14367 pfxccatin12lem2a 14368 pfxccatin12lem1 14369 fourierdlem20 43558 |
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