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Mirrors > Home > ILE Home > Th. List > fzouzdisj | GIF version |
Description: A half-open integer range does not overlap the upper integer range starting at the endpoint of the first range. (Contributed by Mario Carneiro, 21-Sep-2016.) |
Ref | Expression |
---|---|
fzouzdisj | ⊢ ((𝐴..^𝐵) ∩ (ℤ≥‘𝐵)) = ∅ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eq0 3351 | . 2 ⊢ (((𝐴..^𝐵) ∩ (ℤ≥‘𝐵)) = ∅ ↔ ∀𝑥 ¬ 𝑥 ∈ ((𝐴..^𝐵) ∩ (ℤ≥‘𝐵))) | |
2 | elfzolt2 9901 | . . . . 5 ⊢ (𝑥 ∈ (𝐴..^𝐵) → 𝑥 < 𝐵) | |
3 | 2 | adantr 274 | . . . 4 ⊢ ((𝑥 ∈ (𝐴..^𝐵) ∧ 𝑥 ∈ (ℤ≥‘𝐵)) → 𝑥 < 𝐵) |
4 | eluzle 9306 | . . . . . 6 ⊢ (𝑥 ∈ (ℤ≥‘𝐵) → 𝐵 ≤ 𝑥) | |
5 | 4 | adantl 275 | . . . . 5 ⊢ ((𝑥 ∈ (𝐴..^𝐵) ∧ 𝑥 ∈ (ℤ≥‘𝐵)) → 𝐵 ≤ 𝑥) |
6 | eluzel2 9299 | . . . . . . . 8 ⊢ (𝑥 ∈ (ℤ≥‘𝐵) → 𝐵 ∈ ℤ) | |
7 | 6 | adantl 275 | . . . . . . 7 ⊢ ((𝑥 ∈ (𝐴..^𝐵) ∧ 𝑥 ∈ (ℤ≥‘𝐵)) → 𝐵 ∈ ℤ) |
8 | 7 | zred 9141 | . . . . . 6 ⊢ ((𝑥 ∈ (𝐴..^𝐵) ∧ 𝑥 ∈ (ℤ≥‘𝐵)) → 𝐵 ∈ ℝ) |
9 | eluzelre 9304 | . . . . . . 7 ⊢ (𝑥 ∈ (ℤ≥‘𝐵) → 𝑥 ∈ ℝ) | |
10 | 9 | adantl 275 | . . . . . 6 ⊢ ((𝑥 ∈ (𝐴..^𝐵) ∧ 𝑥 ∈ (ℤ≥‘𝐵)) → 𝑥 ∈ ℝ) |
11 | 8, 10 | lenltd 7848 | . . . . 5 ⊢ ((𝑥 ∈ (𝐴..^𝐵) ∧ 𝑥 ∈ (ℤ≥‘𝐵)) → (𝐵 ≤ 𝑥 ↔ ¬ 𝑥 < 𝐵)) |
12 | 5, 11 | mpbid 146 | . . . 4 ⊢ ((𝑥 ∈ (𝐴..^𝐵) ∧ 𝑥 ∈ (ℤ≥‘𝐵)) → ¬ 𝑥 < 𝐵) |
13 | 3, 12 | pm2.65i 613 | . . 3 ⊢ ¬ (𝑥 ∈ (𝐴..^𝐵) ∧ 𝑥 ∈ (ℤ≥‘𝐵)) |
14 | elin 3229 | . . 3 ⊢ (𝑥 ∈ ((𝐴..^𝐵) ∩ (ℤ≥‘𝐵)) ↔ (𝑥 ∈ (𝐴..^𝐵) ∧ 𝑥 ∈ (ℤ≥‘𝐵))) | |
15 | 13, 14 | mtbir 645 | . 2 ⊢ ¬ 𝑥 ∈ ((𝐴..^𝐵) ∩ (ℤ≥‘𝐵)) |
16 | 1, 15 | mpgbir 1414 | 1 ⊢ ((𝐴..^𝐵) ∩ (ℤ≥‘𝐵)) = ∅ |
Colors of variables: wff set class |
Syntax hints: ¬ wn 3 ∧ wa 103 = wceq 1316 ∈ wcel 1465 ∩ cin 3040 ∅c0 3333 class class class wbr 3899 ‘cfv 5093 (class class class)co 5742 ℝcr 7587 < clt 7768 ≤ cle 7769 ℤcz 9022 ℤ≥cuz 9294 ..^cfzo 9887 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 588 ax-in2 589 ax-io 683 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-10 1468 ax-11 1469 ax-i12 1470 ax-bndl 1471 ax-4 1472 ax-13 1476 ax-14 1477 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 ax-ext 2099 ax-sep 4016 ax-pow 4068 ax-pr 4101 ax-un 4325 ax-setind 4422 ax-cnex 7679 ax-resscn 7680 ax-1cn 7681 ax-1re 7682 ax-icn 7683 ax-addcl 7684 ax-addrcl 7685 ax-mulcl 7686 ax-addcom 7688 ax-addass 7690 ax-distr 7692 ax-i2m1 7693 ax-0lt1 7694 ax-0id 7696 ax-rnegex 7697 ax-cnre 7699 ax-pre-ltirr 7700 ax-pre-ltwlin 7701 ax-pre-lttrn 7702 ax-pre-ltadd 7704 |
This theorem depends on definitions: df-bi 116 df-3or 948 df-3an 949 df-tru 1319 df-fal 1322 df-nf 1422 df-sb 1721 df-eu 1980 df-mo 1981 df-clab 2104 df-cleq 2110 df-clel 2113 df-nfc 2247 df-ne 2286 df-nel 2381 df-ral 2398 df-rex 2399 df-reu 2400 df-rab 2402 df-v 2662 df-sbc 2883 df-csb 2976 df-dif 3043 df-un 3045 df-in 3047 df-ss 3054 df-nul 3334 df-pw 3482 df-sn 3503 df-pr 3504 df-op 3506 df-uni 3707 df-int 3742 df-iun 3785 df-br 3900 df-opab 3960 df-mpt 3961 df-id 4185 df-xp 4515 df-rel 4516 df-cnv 4517 df-co 4518 df-dm 4519 df-rn 4520 df-res 4521 df-ima 4522 df-iota 5058 df-fun 5095 df-fn 5096 df-f 5097 df-fv 5101 df-riota 5698 df-ov 5745 df-oprab 5746 df-mpo 5747 df-1st 6006 df-2nd 6007 df-pnf 7770 df-mnf 7771 df-xr 7772 df-ltxr 7773 df-le 7774 df-sub 7903 df-neg 7904 df-inn 8689 df-n0 8946 df-z 9023 df-uz 9295 df-fz 9759 df-fzo 9888 |
This theorem is referenced by: (None) |
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