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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 12584 | . . . 4 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → (𝐾 < 𝑁 ↔ (𝐾 + 1) ≤ 𝑁)) | |
| 2 | 1 | biimp3ar 1473 | . . 3 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) → 𝐾 < 𝑁) |
| 3 | simpl1 1193 | . . . 4 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) ∧ 𝐾 < 𝑁) → 𝐾 ∈ ℕ0) | |
| 4 | simpr 484 | . . . . . . 7 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → 𝑁 ∈ ℕ0) | |
| 5 | 4 | adantr 480 | . . . . . 6 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) ∧ 𝐾 < 𝑁) → 𝑁 ∈ ℕ0) |
| 6 | nn0ge0 12459 | . . . . . . . . 9 ⊢ (𝐾 ∈ ℕ0 → 0 ≤ 𝐾) | |
| 7 | 6 | adantr 480 | . . . . . . . 8 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → 0 ≤ 𝐾) |
| 8 | 0re 11143 | . . . . . . . . 9 ⊢ 0 ∈ ℝ | |
| 9 | nn0re 12443 | . . . . . . . . 9 ⊢ (𝐾 ∈ ℕ0 → 𝐾 ∈ ℝ) | |
| 10 | nn0re 12443 | . . . . . . . . 9 ⊢ (𝑁 ∈ ℕ0 → 𝑁 ∈ ℝ) | |
| 11 | lelttr 11233 | . . . . . . . . 9 ⊢ ((0 ∈ ℝ ∧ 𝐾 ∈ ℝ ∧ 𝑁 ∈ ℝ) → ((0 ≤ 𝐾 ∧ 𝐾 < 𝑁) → 0 < 𝑁)) | |
| 12 | 8, 9, 10, 11 | mp3an3an 1470 | . . . . . . . 8 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → ((0 ≤ 𝐾 ∧ 𝐾 < 𝑁) → 0 < 𝑁)) |
| 13 | 7, 12 | mpand 696 | . . . . . . 7 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → (𝐾 < 𝑁 → 0 < 𝑁)) |
| 14 | 13 | imp 406 | . . . . . 6 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) ∧ 𝐾 < 𝑁) → 0 < 𝑁) |
| 15 | elnnnn0b 12478 | . . . . . 6 ⊢ (𝑁 ∈ ℕ ↔ (𝑁 ∈ ℕ0 ∧ 0 < 𝑁)) | |
| 16 | 5, 14, 15 | sylanbrc 584 | . . . . 5 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) ∧ 𝐾 < 𝑁) → 𝑁 ∈ ℕ) |
| 17 | 16 | 3adantl3 1170 | . . . 4 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) ∧ 𝐾 < 𝑁) → 𝑁 ∈ ℕ) |
| 18 | simpr 484 | . . . 4 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) ∧ 𝐾 < 𝑁) → 𝐾 < 𝑁) | |
| 19 | 3, 17, 18 | 3jca 1129 | . . 3 ⊢ (((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) ∧ 𝐾 < 𝑁) → (𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ ∧ 𝐾 < 𝑁)) |
| 20 | 2, 19 | mpdan 688 | . 2 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) → (𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ ∧ 𝐾 < 𝑁)) |
| 21 | elfzo0 13652 | . 2 ⊢ (𝐾 ∈ (0..^𝑁) ↔ (𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ ∧ 𝐾 < 𝑁)) | |
| 22 | 20, 21 | sylibr 234 | 1 ⊢ ((𝐾 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ (𝐾 + 1) ≤ 𝑁) → 𝐾 ∈ (0..^𝑁)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1087 ∈ wcel 2114 class class class wbr 5086 (class class class)co 7364 ℝcr 11034 0cc0 11035 1c1 11036 + caddc 11038 < clt 11176 ≤ cle 11177 ℕcn 12171 ℕ0cn0 12434 ..^cfzo 13605 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pow 5306 ax-pr 5374 ax-un 7686 ax-cnex 11091 ax-resscn 11092 ax-1cn 11093 ax-icn 11094 ax-addcl 11095 ax-addrcl 11096 ax-mulcl 11097 ax-mulrcl 11098 ax-mulcom 11099 ax-addass 11100 ax-mulass 11101 ax-distr 11102 ax-i2m1 11103 ax-1ne0 11104 ax-1rid 11105 ax-rnegex 11106 ax-rrecex 11107 ax-cnre 11108 ax-pre-lttri 11109 ax-pre-lttrn 11110 ax-pre-ltadd 11111 ax-pre-mulgt0 11112 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5523 df-eprel 5528 df-po 5536 df-so 5537 df-fr 5581 df-we 5583 df-xp 5634 df-rel 5635 df-cnv 5636 df-co 5637 df-dm 5638 df-rn 5639 df-res 5640 df-ima 5641 df-pred 6263 df-ord 6324 df-on 6325 df-lim 6326 df-suc 6327 df-iota 6452 df-fun 6498 df-fn 6499 df-f 6500 df-f1 6501 df-fo 6502 df-f1o 6503 df-fv 6504 df-riota 7321 df-ov 7367 df-oprab 7368 df-mpo 7369 df-om 7815 df-1st 7939 df-2nd 7940 df-frecs 8228 df-wrecs 8259 df-recs 8308 df-rdg 8346 df-er 8640 df-en 8891 df-dom 8892 df-sdom 8893 df-pnf 11178 df-mnf 11179 df-xr 11180 df-ltxr 11181 df-le 11182 df-sub 11376 df-neg 11377 df-nn 12172 df-n0 12435 df-z 12522 df-uz 12786 df-fz 13459 df-fzo 13606 |
| This theorem is referenced by: chnrev 18590 wwlksnextproplem1 29998 eupth2lem3 30327 wrdt2ind 33034 |
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