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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 12532 | . . 3 ⊢ (𝑁 ∈ ℤ → (𝑁 − 1) ∈ ℤ) | |
| 2 | elfzm1b 13516 | . . 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 13574 | . . . 4 ⊢ (𝑁 ∈ ℤ → (1..^𝑁) = (1...(𝑁 − 1))) | |
| 5 | 4 | adantl 481 | . . 3 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (1..^𝑁) = (1...(𝑁 − 1))) |
| 6 | 5 | eleq2d 2820 | . 2 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (1..^𝑁) ↔ 𝐾 ∈ (1...(𝑁 − 1)))) |
| 7 | 1 | adantl 481 | . . . 4 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑁 − 1) ∈ ℤ) |
| 8 | fzoval 13574 | . . . 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 2820 | . 2 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → ((𝐾 − 1) ∈ (0..^(𝑁 − 1)) ↔ (𝐾 − 1) ∈ (0...((𝑁 − 1) − 1)))) |
| 11 | 3, 6, 10 | 3bitr4d 311 | 1 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∈ (1..^𝑁) ↔ (𝐾 − 1) ∈ (0..^(𝑁 − 1)))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1541 ∈ wcel 2113 (class class class)co 7356 0cc0 11024 1c1 11025 − cmin 11362 ℤcz 12486 ...cfz 13421 ..^cfzo 13568 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2706 ax-sep 5239 ax-nul 5249 ax-pow 5308 ax-pr 5375 ax-un 7678 ax-cnex 11080 ax-resscn 11081 ax-1cn 11082 ax-icn 11083 ax-addcl 11084 ax-addrcl 11085 ax-mulcl 11086 ax-mulrcl 11087 ax-mulcom 11088 ax-addass 11089 ax-mulass 11090 ax-distr 11091 ax-i2m1 11092 ax-1ne0 11093 ax-1rid 11094 ax-rnegex 11095 ax-rrecex 11096 ax-cnre 11097 ax-pre-lttri 11098 ax-pre-lttrn 11099 ax-pre-ltadd 11100 ax-pre-mulgt0 11101 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2809 df-nfc 2883 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3059 df-reu 3349 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4579 df-pr 4581 df-op 4585 df-uni 4862 df-iun 4946 df-br 5097 df-opab 5159 df-mpt 5178 df-tr 5204 df-id 5517 df-eprel 5522 df-po 5530 df-so 5531 df-fr 5575 df-we 5577 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-pred 6257 df-ord 6318 df-on 6319 df-lim 6320 df-suc 6321 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-f1 6495 df-fo 6496 df-f1o 6497 df-fv 6498 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7807 df-1st 7931 df-2nd 7932 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-er 8633 df-en 8882 df-dom 8883 df-sdom 8884 df-pnf 11166 df-mnf 11167 df-xr 11168 df-ltxr 11169 df-le 11170 df-sub 11364 df-neg 11365 df-nn 12144 df-n0 12400 df-z 12487 df-uz 12750 df-fz 13422 df-fzo 13569 |
| This theorem is referenced by: elfzom1elp1fzo1 13681 elfzo1elm1fzo0 13682 elfzodif0 13684 elfznelfzo 13687 chnind 18542 iccpartgtprec 47608 bgoldbtbndlem2 47994 |
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