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Mirrors > Home > MPE Home > Th. List > nn0p1elfzo | Structured version Visualization version GIF version |
Description: A nonnegative integer increased by 1 which is less than or equal to another integer is an element of a half-open range of integers. (Contributed by AV, 27-Feb-2021.) |
Ref | Expression |
---|---|
nn0p1elfzo | ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) → 𝐾 ∈ (0..^𝑁)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nn0ltp1le 12560 | . . . 4 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → (𝐾 < 𝑁 ↔ (𝐾 + 1) ≤ 𝑁)) | |
2 | 1 | biimp3ar 1470 | . . 3 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) → 𝐾 < 𝑁) |
3 | simpl1 1191 | . . . 4 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) ∧ 𝐾 < 𝑁) → 𝐾 ∈ ℕ0) | |
4 | simpr 485 | . . . . . . 7 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → 𝑁 ∈ ℕ0) | |
5 | 4 | adantr 481 | . . . . . 6 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) ∧ 𝐾 < 𝑁) → 𝑁 ∈ ℕ0) |
6 | nn0ge0 12437 | . . . . . . . . 9 ⊢ (𝐾 ∈ ℕ0 → 0 ≤ 𝐾) | |
7 | 6 | adantr 481 | . . . . . . . 8 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → 0 ≤ 𝐾) |
8 | 0re 11156 | . . . . . . . . 9 ⊢ 0 ∈ ℝ | |
9 | nn0re 12421 | . . . . . . . . 9 ⊢ (𝐾 ∈ ℕ0 → 𝐾 ∈ ℝ) | |
10 | nn0re 12421 | . . . . . . . . 9 ⊢ (𝑁 ∈ ℕ0 → 𝑁 ∈ ℝ) | |
11 | lelttr 11244 | . . . . . . . . 9 ⊢ ((0 ∈ ℝ ∧ 𝐾 ∈ ℝ ∧ 𝑁 ∈ ℝ) → ((0 ≤ 𝐾 ∧ 𝐾 < 𝑁) → 0 < 𝑁)) | |
12 | 8, 9, 10, 11 | mp3an3an 1467 | . . . . . . . 8 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → ((0 ≤ 𝐾 ∧ 𝐾 < 𝑁) → 0 < 𝑁)) |
13 | 7, 12 | mpand 693 | . . . . . . 7 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → (𝐾 < 𝑁 → 0 < 𝑁)) |
14 | 13 | imp 407 | . . . . . 6 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) ∧ 𝐾 < 𝑁) → 0 < 𝑁) |
15 | elnnnn0b 12456 | . . . . . 6 ⊢ (𝑁 ∈ ℕ ↔ (𝑁 ∈ ℕ0 ∧ 0 < 𝑁)) | |
16 | 5, 14, 15 | sylanbrc 583 | . . . . 5 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) ∧ 𝐾 < 𝑁) → 𝑁 ∈ ℕ) |
17 | 16 | 3adantl3 1168 | . . . 4 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) ∧ 𝐾 < 𝑁) → 𝑁 ∈ ℕ) |
18 | simpr 485 | . . . 4 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) ∧ 𝐾 < 𝑁) → 𝐾 < 𝑁) | |
19 | 3, 17, 18 | 3jca 1128 | . . 3 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) ∧ 𝐾 < 𝑁) → (𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ ∧ 𝐾 < 𝑁)) |
20 | 2, 19 | mpdan 685 | . 2 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) → (𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ ∧ 𝐾 < 𝑁)) |
21 | elfzo0 13612 | . 2 ⊢ (𝐾 ∈ (0..^𝑁) ↔ (𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ ∧ 𝐾 < 𝑁)) | |
22 | 20, 21 | sylibr 233 | 1 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) → 𝐾 ∈ (0..^𝑁)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∧ w3a 1087 ∈ wcel 2106 class class class wbr 5105 (class class class)co 7356 ℝcr 11049 0cc0 11050 1c1 11051 + caddc 11053 < clt 11188 ≤ cle 11189 ℕcn 12152 ℕ0cn0 12412 ..^cfzo 13566 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2707 ax-sep 5256 ax-nul 5263 ax-pow 5320 ax-pr 5384 ax-un 7671 ax-cnex 11106 ax-resscn 11107 ax-1cn 11108 ax-icn 11109 ax-addcl 11110 ax-addrcl 11111 ax-mulcl 11112 ax-mulrcl 11113 ax-mulcom 11114 ax-addass 11115 ax-mulass 11116 ax-distr 11117 ax-i2m1 11118 ax-1ne0 11119 ax-1rid 11120 ax-rnegex 11121 ax-rrecex 11122 ax-cnre 11123 ax-pre-lttri 11124 ax-pre-lttrn 11125 ax-pre-ltadd 11126 ax-pre-mulgt0 11127 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3065 df-rex 3074 df-reu 3354 df-rab 3408 df-v 3447 df-sbc 3740 df-csb 3856 df-dif 3913 df-un 3915 df-in 3917 df-ss 3927 df-pss 3929 df-nul 4283 df-if 4487 df-pw 4562 df-sn 4587 df-pr 4589 df-op 4593 df-uni 4866 df-iun 4956 df-br 5106 df-opab 5168 df-mpt 5189 df-tr 5223 df-id 5531 df-eprel 5537 df-po 5545 df-so 5546 df-fr 5588 df-we 5590 df-xp 5639 df-rel 5640 df-cnv 5641 df-co 5642 df-dm 5643 df-rn 5644 df-res 5645 df-ima 5646 df-pred 6253 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6498 df-fn 6499 df-f 6500 df-f1 6501 df-fo 6502 df-f1o 6503 df-fv 6504 df-riota 7312 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7802 df-1st 7920 df-2nd 7921 df-frecs 8211 df-wrecs 8242 df-recs 8316 df-rdg 8355 df-er 8647 df-en 8883 df-dom 8884 df-sdom 8885 df-pnf 11190 df-mnf 11191 df-xr 11192 df-ltxr 11193 df-le 11194 df-sub 11386 df-neg 11387 df-nn 12153 df-n0 12413 df-z 12499 df-uz 12763 df-fz 13424 df-fzo 13567 |
This theorem is referenced by: wwlksnextproplem1 28801 eupth2lem3 29127 wrdt2ind 31751 |
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