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Mirrors > Home > MPE Home > Th. List > fzoun | Structured version Visualization version GIF version |
Description: A half-open integer range as union of two half-open integer ranges. (Contributed by AV, 23-Apr-2022.) |
Ref | Expression |
---|---|
fzoun | ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → (𝐴..^(𝐵 + 𝐶)) = ((𝐴..^𝐵) ∪ (𝐵..^(𝐵 + 𝐶)))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluzel2 12516 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐴 ∈ ℤ) | |
2 | 1 | adantr 480 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐴 ∈ ℤ) |
3 | eluzelz 12521 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐵 ∈ ℤ) | |
4 | nn0z 12273 | . . . 4 ⊢ (𝐶 ∈ ℕ0 → 𝐶 ∈ ℤ) | |
5 | zaddcl 12290 | . . . 4 ⊢ ((𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵 + 𝐶) ∈ ℤ) | |
6 | 3, 4, 5 | syl2an 595 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → (𝐵 + 𝐶) ∈ ℤ) |
7 | 3 | adantr 480 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐵 ∈ ℤ) |
8 | eluzle 12524 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐴 ≤ 𝐵) | |
9 | 8 | adantr 480 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐴 ≤ 𝐵) |
10 | nn0ge0 12188 | . . . . 5 ⊢ (𝐶 ∈ ℕ0 → 0 ≤ 𝐶) | |
11 | 10 | adantl 481 | . . . 4 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 0 ≤ 𝐶) |
12 | eluzelre 12522 | . . . . 5 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐵 ∈ ℝ) | |
13 | nn0re 12172 | . . . . 5 ⊢ (𝐶 ∈ ℕ0 → 𝐶 ∈ ℝ) | |
14 | addge01 11415 | . . . . 5 ⊢ ((𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (0 ≤ 𝐶 ↔ 𝐵 ≤ (𝐵 + 𝐶))) | |
15 | 12, 13, 14 | syl2an 595 | . . . 4 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → (0 ≤ 𝐶 ↔ 𝐵 ≤ (𝐵 + 𝐶))) |
16 | 11, 15 | mpbid 231 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐵 ≤ (𝐵 + 𝐶)) |
17 | 2, 6, 7, 9, 16 | elfzd 13176 | . 2 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐵 ∈ (𝐴...(𝐵 + 𝐶))) |
18 | fzosplit 13348 | . 2 ⊢ (𝐵 ∈ (𝐴...(𝐵 + 𝐶)) → (𝐴..^(𝐵 + 𝐶)) = ((𝐴..^𝐵) ∪ (𝐵..^(𝐵 + 𝐶)))) | |
19 | 17, 18 | syl 17 | 1 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → (𝐴..^(𝐵 + 𝐶)) = ((𝐴..^𝐵) ∪ (𝐵..^(𝐵 + 𝐶)))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1539 ∈ wcel 2108 ∪ cun 3881 class class class wbr 5070 ‘cfv 6418 (class class class)co 7255 ℝcr 10801 0cc0 10802 + caddc 10805 ≤ cle 10941 ℕ0cn0 12163 ℤcz 12249 ℤ≥cuz 12511 ...cfz 13168 ..^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: clwwlkccatlem 28254 metakunt20 40072 |
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