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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 12467 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐴 ∈ ℤ) | |
2 | 1 | adantr 484 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐴 ∈ ℤ) |
3 | eluzelz 12472 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐵 ∈ ℤ) | |
4 | nn0z 12224 | . . . 4 ⊢ (𝐶 ∈ ℕ0 → 𝐶 ∈ ℤ) | |
5 | zaddcl 12241 | . . . 4 ⊢ ((𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵 + 𝐶) ∈ ℤ) | |
6 | 3, 4, 5 | syl2an 599 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → (𝐵 + 𝐶) ∈ ℤ) |
7 | 3 | adantr 484 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐵 ∈ ℤ) |
8 | eluzle 12475 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐴 ≤ 𝐵) | |
9 | 8 | adantr 484 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐴 ≤ 𝐵) |
10 | nn0ge0 12139 | . . . . 5 ⊢ (𝐶 ∈ ℕ0 → 0 ≤ 𝐶) | |
11 | 10 | adantl 485 | . . . 4 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 0 ≤ 𝐶) |
12 | eluzelre 12473 | . . . . 5 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐵 ∈ ℝ) | |
13 | nn0re 12123 | . . . . 5 ⊢ (𝐶 ∈ ℕ0 → 𝐶 ∈ ℝ) | |
14 | addge01 11366 | . . . . 5 ⊢ ((𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (0 ≤ 𝐶 ↔ 𝐵 ≤ (𝐵 + 𝐶))) | |
15 | 12, 13, 14 | syl2an 599 | . . . 4 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → (0 ≤ 𝐶 ↔ 𝐵 ≤ (𝐵 + 𝐶))) |
16 | 11, 15 | mpbid 235 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐵 ≤ (𝐵 + 𝐶)) |
17 | 2, 6, 7, 9, 16 | elfzd 13127 | . 2 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐵 ∈ (𝐴...(𝐵 + 𝐶))) |
18 | fzosplit 13299 | . 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 209 ∧ wa 399 = wceq 1543 ∈ wcel 2111 ∪ cun 3878 class class class wbr 5067 ‘cfv 6397 (class class class)co 7231 ℝcr 10752 0cc0 10753 + caddc 10756 ≤ cle 10892 ℕ0cn0 12114 ℤcz 12200 ℤ≥cuz 12462 ...cfz 13119 ..^cfzo 13262 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2159 ax-12 2176 ax-ext 2709 ax-sep 5206 ax-nul 5213 ax-pow 5272 ax-pr 5336 ax-un 7541 ax-cnex 10809 ax-resscn 10810 ax-1cn 10811 ax-icn 10812 ax-addcl 10813 ax-addrcl 10814 ax-mulcl 10815 ax-mulrcl 10816 ax-mulcom 10817 ax-addass 10818 ax-mulass 10819 ax-distr 10820 ax-i2m1 10821 ax-1ne0 10822 ax-1rid 10823 ax-rnegex 10824 ax-rrecex 10825 ax-cnre 10826 ax-pre-lttri 10827 ax-pre-lttrn 10828 ax-pre-ltadd 10829 ax-pre-mulgt0 10830 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2072 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3067 df-rex 3068 df-reu 3069 df-rab 3071 df-v 3422 df-sbc 3709 df-csb 3826 df-dif 3883 df-un 3885 df-in 3887 df-ss 3897 df-pss 3899 df-nul 4252 df-if 4454 df-pw 4529 df-sn 4556 df-pr 4558 df-tp 4560 df-op 4562 df-uni 4834 df-iun 4920 df-br 5068 df-opab 5130 df-mpt 5150 df-tr 5176 df-id 5469 df-eprel 5474 df-po 5482 df-so 5483 df-fr 5523 df-we 5525 df-xp 5571 df-rel 5572 df-cnv 5573 df-co 5574 df-dm 5575 df-rn 5576 df-res 5577 df-ima 5578 df-pred 6175 df-ord 6233 df-on 6234 df-lim 6235 df-suc 6236 df-iota 6355 df-fun 6399 df-fn 6400 df-f 6401 df-f1 6402 df-fo 6403 df-f1o 6404 df-fv 6405 df-riota 7188 df-ov 7234 df-oprab 7235 df-mpo 7236 df-om 7663 df-1st 7779 df-2nd 7780 df-wrecs 8067 df-recs 8128 df-rdg 8166 df-er 8411 df-en 8647 df-dom 8648 df-sdom 8649 df-pnf 10893 df-mnf 10894 df-xr 10895 df-ltxr 10896 df-le 10897 df-sub 11088 df-neg 11089 df-nn 11855 df-n0 12115 df-z 12201 df-uz 12463 df-fz 13120 df-fzo 13263 |
This theorem is referenced by: clwwlkccatlem 28096 metakunt20 39895 |
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