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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 12845 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐴 ∈ ℤ) | |
| 2 | 1 | adantr 484 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐴 ∈ ℤ) |
| 3 | eluzelz 12850 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐵 ∈ ℤ) | |
| 4 | nn0z 12593 | . . . 4 ⊢ (𝐶 ∈ ℕ0 → 𝐶 ∈ ℤ) | |
| 5 | zaddcl 12612 | . . . 4 ⊢ ((𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵 + 𝐶) ∈ ℤ) | |
| 6 | 3, 4, 5 | syl2an 605 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → (𝐵 + 𝐶) ∈ ℤ) |
| 7 | 3 | adantr 484 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐵 ∈ ℤ) |
| 8 | eluzle 12853 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐴 ≤ 𝐵) | |
| 9 | 8 | adantr 484 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐴 ≤ 𝐵) |
| 10 | nn0ge0 12507 | . . . . 5 ⊢ (𝐶 ∈ ℕ0 → 0 ≤ 𝐶) | |
| 11 | 10 | adantl 485 | . . . 4 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 0 ≤ 𝐶) |
| 12 | eluzelre 12851 | . . . . 5 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐵 ∈ ℝ) | |
| 13 | nn0re 12491 | . . . . 5 ⊢ (𝐶 ∈ ℕ0 → 𝐶 ∈ ℝ) | |
| 14 | addge01 11698 | . . . . 5 ⊢ ((𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (0 ≤ 𝐶 ↔ 𝐵 ≤ (𝐵 + 𝐶))) | |
| 15 | 12, 13, 14 | syl2an 605 | . . . 4 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → (0 ≤ 𝐶 ↔ 𝐵 ≤ (𝐵 + 𝐶))) |
| 16 | 11, 15 | mpbid 234 | . . 3 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐵 ≤ (𝐵 + 𝐶)) |
| 17 | 2, 6, 7, 9, 16 | elfzd 13521 | . 2 ⊢ ((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℕ0) → 𝐵 ∈ (𝐴...(𝐵 + 𝐶))) |
| 18 | fzosplit 13699 | . 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 208 ∧ wa 399 = wceq 1561 ∈ wcel 2143 ∪ cun 3903 class class class wbr 5101 ‘cfv 6522 (class class class)co 7397 ℝcr 11073 0cc0 11074 + caddc 11077 ≤ cle 11218 ℕ0cn0 12482 ℤcz 12569 ℤ≥cuz 12840 ...cfz 13513 ..^cfzo 13660 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1816 ax-4 1830 ax-5 1931 ax-6 1988 ax-7 2029 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5247 ax-nul 5257 ax-pow 5323 ax-pr 5391 ax-un 7719 ax-cnex 11130 ax-resscn 11131 ax-1cn 11132 ax-icn 11133 ax-addcl 11134 ax-addrcl 11135 ax-mulcl 11136 ax-mulrcl 11137 ax-mulcom 11138 ax-addass 11139 ax-mulass 11140 ax-distr 11141 ax-i2m1 11142 ax-1ne0 11143 ax-1rid 11144 ax-rnegex 11145 ax-rrecex 11146 ax-cnre 11147 ax-pre-lttri 11148 ax-pre-lttrn 11149 ax-pre-ltadd 11150 ax-pre-mulgt0 11151 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1564 df-fal 1574 df-ex 1801 df-nf 1805 df-sb 2092 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3369 df-rab 3416 df-v 3457 df-sbc 3746 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5102 df-opab 5164 df-mpt 5183 df-tr 5209 df-id 5543 df-eprel 5548 df-po 5556 df-so 5557 df-fr 5601 df-we 5603 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-pred 6289 df-ord 6350 df-on 6351 df-lim 6352 df-suc 6353 df-iota 6478 df-fun 6524 df-fn 6525 df-f 6526 df-f1 6527 df-fo 6528 df-f1o 6529 df-fv 6530 df-riota 7354 df-ov 7400 df-oprab 7401 df-mpo 7402 df-om 7848 df-1st 7971 df-2nd 7972 df-frecs 8263 df-wrecs 8294 df-recs 8343 df-rdg 8382 df-er 8679 df-en 8929 df-dom 8930 df-sdom 8931 df-pnf 11219 df-mnf 11220 df-xr 11221 df-ltxr 11222 df-le 11223 df-sub 11417 df-neg 11418 df-nn 12212 df-n0 12483 df-z 12570 df-uz 12841 df-fz 13514 df-fzo 13661 |
| This theorem is referenced by: clwwlkccatlem 30192 |
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