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Mirrors > Home > MPE Home > Th. List > elfzom1b | Structured version Visualization version GIF version |
Description: An integer is a member of a 1-based finite set of sequential integers iff its predecessor is a member of the corresponding 0-based set. (Contributed by Mario Carneiro, 27-Sep-2015.) |
Ref | Expression |
---|---|
elfzom1b | ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (1..^𝑁) ↔ (𝐾 − 1) ∈ (0..^(𝑁 − 1)))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | peano2zm 12584 | . . 3 ⊢ (𝑁 ∈ ℤ → (𝑁 − 1) ∈ ℤ) | |
2 | elfzm1b 13558 | . . 3 ⊢ ((𝐾 ∈ ℤ ∧ (𝑁 − 1) ∈ ℤ) → (𝐾 ∈ (1...(𝑁 − 1)) ↔ (𝐾 − 1) ∈ (0...((𝑁 − 1) − 1)))) | |
3 | 1, 2 | sylan2 593 | . 2 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (1...(𝑁 − 1)) ↔ (𝐾 − 1) ∈ (0...((𝑁 − 1) − 1)))) |
4 | fzoval 13612 | . . . 4 ⊢ (𝑁 ∈ ℤ → (1..^𝑁) = (1...(𝑁 − 1))) | |
5 | 4 | adantl 482 | . . 3 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (1..^𝑁) = (1...(𝑁 − 1))) |
6 | 5 | eleq2d 2818 | . 2 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (1..^𝑁) ↔ 𝐾 ∈ (1...(𝑁 − 1)))) |
7 | 1 | adantl 482 | . . . 4 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑁 − 1) ∈ ℤ) |
8 | fzoval 13612 | . . . 4 ⊢ ((𝑁 − 1) ∈ ℤ → (0..^(𝑁 − 1)) = (0...((𝑁 − 1) − 1))) | |
9 | 7, 8 | syl 17 | . . 3 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (0..^(𝑁 − 1)) = (0...((𝑁 − 1) − 1))) |
10 | 9 | eleq2d 2818 | . 2 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → ((𝐾 − 1) ∈ (0..^(𝑁 − 1)) ↔ (𝐾 − 1) ∈ (0...((𝑁 − 1) − 1)))) |
11 | 3, 6, 10 | 3bitr4d 310 | 1 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (1..^𝑁) ↔ (𝐾 − 1) ∈ (0..^(𝑁 − 1)))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1541 ∈ wcel 2106 (class class class)co 7390 0cc0 11089 1c1 11090 − cmin 11423 ℤcz 12537 ...cfz 13463 ..^cfzo 13606 |
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 2702 ax-sep 5289 ax-nul 5296 ax-pow 5353 ax-pr 5417 ax-un 7705 ax-cnex 11145 ax-resscn 11146 ax-1cn 11147 ax-icn 11148 ax-addcl 11149 ax-addrcl 11150 ax-mulcl 11151 ax-mulrcl 11152 ax-mulcom 11153 ax-addass 11154 ax-mulass 11155 ax-distr 11156 ax-i2m1 11157 ax-1ne0 11158 ax-1rid 11159 ax-rnegex 11160 ax-rrecex 11161 ax-cnre 11162 ax-pre-lttri 11163 ax-pre-lttrn 11164 ax-pre-ltadd 11165 ax-pre-mulgt0 11166 |
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 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-reu 3376 df-rab 3430 df-v 3472 df-sbc 3771 df-csb 3887 df-dif 3944 df-un 3946 df-in 3948 df-ss 3958 df-pss 3960 df-nul 4316 df-if 4520 df-pw 4595 df-sn 4620 df-pr 4622 df-op 4626 df-uni 4899 df-iun 4989 df-br 5139 df-opab 5201 df-mpt 5222 df-tr 5256 df-id 5564 df-eprel 5570 df-po 5578 df-so 5579 df-fr 5621 df-we 5623 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-pred 6286 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6531 df-fn 6532 df-f 6533 df-f1 6534 df-fo 6535 df-f1o 6536 df-fv 6537 df-riota 7346 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7836 df-1st 7954 df-2nd 7955 df-frecs 8245 df-wrecs 8276 df-recs 8350 df-rdg 8389 df-er 8683 df-en 8920 df-dom 8921 df-sdom 8922 df-pnf 11229 df-mnf 11230 df-xr 11231 df-ltxr 11232 df-le 11233 df-sub 11425 df-neg 11426 df-nn 12192 df-n0 12452 df-z 12538 df-uz 12802 df-fz 13464 df-fzo 13607 |
This theorem is referenced by: elfzom1elp1fzo1 13711 elfzo1elm1fzo0 13712 elfznelfzo 13716 iccpartgtprec 45846 bgoldbtbndlem2 46232 |
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