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Mirrors > Home > MPE Home > Th. List > elfznelfzob | Structured version Visualization version GIF version |
Description: A value in a finite set of sequential integers is a border value if and only if it is not contained in the half-open integer range contained in the finite set of sequential integers. (Contributed by Alexander van der Vekens, 17-Jan-2018.) (Revised by Thierry Arnoux, 22-Dec-2021.) |
Ref | Expression |
---|---|
elfznelfzob | ⊢ (𝑀 ∈ (0...𝐾) → (¬ 𝑀 ∈ (1..^𝐾) ↔ (𝑀 = 0 ∨ 𝑀 = 𝐾))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfznelfzo 13683 | . . 3 ⊢ ((𝑀 ∈ (0...𝐾) ∧ ¬ 𝑀 ∈ (1..^𝐾)) → (𝑀 = 0 ∨ 𝑀 = 𝐾)) | |
2 | 1 | ex 414 | . 2 ⊢ (𝑀 ∈ (0...𝐾) → (¬ 𝑀 ∈ (1..^𝐾) → (𝑀 = 0 ∨ 𝑀 = 𝐾))) |
3 | elfzole1 13586 | . . . . . 6 ⊢ (𝑀 ∈ (1..^𝐾) → 1 ≤ 𝑀) | |
4 | elfzolt2 13587 | . . . . . . 7 ⊢ (𝑀 ∈ (1..^𝐾) → 𝑀 < 𝐾) | |
5 | elfzoel2 13577 | . . . . . . 7 ⊢ (𝑀 ∈ (1..^𝐾) → 𝐾 ∈ ℤ) | |
6 | elfzoelz 13578 | . . . . . . 7 ⊢ (𝑀 ∈ (1..^𝐾) → 𝑀 ∈ ℤ) | |
7 | 0lt1 11682 | . . . . . . . . . . 11 ⊢ 0 < 1 | |
8 | breq1 5109 | . . . . . . . . . . 11 ⊢ (𝑀 = 0 → (𝑀 < 1 ↔ 0 < 1)) | |
9 | 7, 8 | mpbiri 258 | . . . . . . . . . 10 ⊢ (𝑀 = 0 → 𝑀 < 1) |
10 | zre 12508 | . . . . . . . . . . . 12 ⊢ (𝑀 ∈ ℤ → 𝑀 ∈ ℝ) | |
11 | 10 | adantl 483 | . . . . . . . . . . 11 ⊢ (((𝑀 < 𝐾 ∧ 𝐾 ∈ ℤ) ∧ 𝑀 ∈ ℤ) → 𝑀 ∈ ℝ) |
12 | 1red 11161 | . . . . . . . . . . 11 ⊢ (((𝑀 < 𝐾 ∧ 𝐾 ∈ ℤ) ∧ 𝑀 ∈ ℤ) → 1 ∈ ℝ) | |
13 | 11, 12 | ltnled 11307 | . . . . . . . . . 10 ⊢ (((𝑀 < 𝐾 ∧ 𝐾 ∈ ℤ) ∧ 𝑀 ∈ ℤ) → (𝑀 < 1 ↔ ¬ 1 ≤ 𝑀)) |
14 | 9, 13 | imbitrid 243 | . . . . . . . . 9 ⊢ (((𝑀 < 𝐾 ∧ 𝐾 ∈ ℤ) ∧ 𝑀 ∈ ℤ) → (𝑀 = 0 → ¬ 1 ≤ 𝑀)) |
15 | 14 | con2d 134 | . . . . . . . 8 ⊢ (((𝑀 < 𝐾 ∧ 𝐾 ∈ ℤ) ∧ 𝑀 ∈ ℤ) → (1 ≤ 𝑀 → ¬ 𝑀 = 0)) |
16 | zre 12508 | . . . . . . . . . . . . . 14 ⊢ (𝐾 ∈ ℤ → 𝐾 ∈ ℝ) | |
17 | ltlen 11261 | . . . . . . . . . . . . . 14 ⊢ ((𝑀 ∈ ℝ ∧ 𝐾 ∈ ℝ) → (𝑀 < 𝐾 ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≠ 𝑀))) | |
18 | 10, 16, 17 | syl2anr 598 | . . . . . . . . . . . . 13 ⊢ ((𝐾 ∈ ℤ ∧ 𝑀 ∈ ℤ) → (𝑀 < 𝐾 ↔ (𝑀 ≤ 𝐾 ∧ 𝐾 ≠ 𝑀))) |
19 | necom 2994 | . . . . . . . . . . . . . . 15 ⊢ (𝐾 ≠ 𝑀 ↔ 𝑀 ≠ 𝐾) | |
20 | df-ne 2941 | . . . . . . . . . . . . . . 15 ⊢ (𝑀 ≠ 𝐾 ↔ ¬ 𝑀 = 𝐾) | |
21 | 19, 20 | sylbb 218 | . . . . . . . . . . . . . 14 ⊢ (𝐾 ≠ 𝑀 → ¬ 𝑀 = 𝐾) |
22 | 21 | adantl 483 | . . . . . . . . . . . . 13 ⊢ ((𝑀 ≤ 𝐾 ∧ 𝐾 ≠ 𝑀) → ¬ 𝑀 = 𝐾) |
23 | 18, 22 | syl6bi 253 | . . . . . . . . . . . 12 ⊢ ((𝐾 ∈ ℤ ∧ 𝑀 ∈ ℤ) → (𝑀 < 𝐾 → ¬ 𝑀 = 𝐾)) |
24 | 23 | ex 414 | . . . . . . . . . . 11 ⊢ (𝐾 ∈ ℤ → (𝑀 ∈ ℤ → (𝑀 < 𝐾 → ¬ 𝑀 = 𝐾))) |
25 | 24 | com23 86 | . . . . . . . . . 10 ⊢ (𝐾 ∈ ℤ → (𝑀 < 𝐾 → (𝑀 ∈ ℤ → ¬ 𝑀 = 𝐾))) |
26 | 25 | impcom 409 | . . . . . . . . 9 ⊢ ((𝑀 < 𝐾 ∧ 𝐾 ∈ ℤ) → (𝑀 ∈ ℤ → ¬ 𝑀 = 𝐾)) |
27 | 26 | imp 408 | . . . . . . . 8 ⊢ (((𝑀 < 𝐾 ∧ 𝐾 ∈ ℤ) ∧ 𝑀 ∈ ℤ) → ¬ 𝑀 = 𝐾) |
28 | 15, 27 | jctird 528 | . . . . . . 7 ⊢ (((𝑀 < 𝐾 ∧ 𝐾 ∈ ℤ) ∧ 𝑀 ∈ ℤ) → (1 ≤ 𝑀 → (¬ 𝑀 = 0 ∧ ¬ 𝑀 = 𝐾))) |
29 | 4, 5, 6, 28 | syl21anc 837 | . . . . . 6 ⊢ (𝑀 ∈ (1..^𝐾) → (1 ≤ 𝑀 → (¬ 𝑀 = 0 ∧ ¬ 𝑀 = 𝐾))) |
30 | 3, 29 | mpd 15 | . . . . 5 ⊢ (𝑀 ∈ (1..^𝐾) → (¬ 𝑀 = 0 ∧ ¬ 𝑀 = 𝐾)) |
31 | ioran 983 | . . . . 5 ⊢ (¬ (𝑀 = 0 ∨ 𝑀 = 𝐾) ↔ (¬ 𝑀 = 0 ∧ ¬ 𝑀 = 𝐾)) | |
32 | 30, 31 | sylibr 233 | . . . 4 ⊢ (𝑀 ∈ (1..^𝐾) → ¬ (𝑀 = 0 ∨ 𝑀 = 𝐾)) |
33 | 32 | a1i 11 | . . 3 ⊢ (𝑀 ∈ (0...𝐾) → (𝑀 ∈ (1..^𝐾) → ¬ (𝑀 = 0 ∨ 𝑀 = 𝐾))) |
34 | 33 | con2d 134 | . 2 ⊢ (𝑀 ∈ (0...𝐾) → ((𝑀 = 0 ∨ 𝑀 = 𝐾) → ¬ 𝑀 ∈ (1..^𝐾))) |
35 | 2, 34 | impbid 211 | 1 ⊢ (𝑀 ∈ (0...𝐾) → (¬ 𝑀 ∈ (1..^𝐾) ↔ (𝑀 = 0 ∨ 𝑀 = 𝐾))) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 397 ∨ wo 846 = wceq 1542 ∈ wcel 2107 ≠ wne 2940 class class class wbr 5106 (class class class)co 7358 ℝcr 11055 0cc0 11056 1c1 11057 < clt 11194 ≤ cle 11195 ℤcz 12504 ...cfz 13430 ..^cfzo 13573 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-sep 5257 ax-nul 5264 ax-pow 5321 ax-pr 5385 ax-un 7673 ax-cnex 11112 ax-resscn 11113 ax-1cn 11114 ax-icn 11115 ax-addcl 11116 ax-addrcl 11117 ax-mulcl 11118 ax-mulrcl 11119 ax-mulcom 11120 ax-addass 11121 ax-mulass 11122 ax-distr 11123 ax-i2m1 11124 ax-1ne0 11125 ax-1rid 11126 ax-rnegex 11127 ax-rrecex 11128 ax-cnre 11129 ax-pre-lttri 11130 ax-pre-lttrn 11131 ax-pre-ltadd 11132 ax-pre-mulgt0 11133 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-reu 3353 df-rab 3407 df-v 3446 df-sbc 3741 df-csb 3857 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3930 df-nul 4284 df-if 4488 df-pw 4563 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4867 df-iun 4957 df-br 5107 df-opab 5169 df-mpt 5190 df-tr 5224 df-id 5532 df-eprel 5538 df-po 5546 df-so 5547 df-fr 5589 df-we 5591 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-rn 5645 df-res 5646 df-ima 5647 df-pred 6254 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6499 df-fn 6500 df-f 6501 df-f1 6502 df-fo 6503 df-f1o 6504 df-fv 6505 df-riota 7314 df-ov 7361 df-oprab 7362 df-mpo 7363 df-om 7804 df-1st 7922 df-2nd 7923 df-frecs 8213 df-wrecs 8244 df-recs 8318 df-rdg 8357 df-er 8651 df-en 8887 df-dom 8888 df-sdom 8889 df-pnf 11196 df-mnf 11197 df-xr 11198 df-ltxr 11199 df-le 11200 df-sub 11392 df-neg 11393 df-nn 12159 df-n0 12419 df-z 12505 df-uz 12769 df-fz 13431 df-fzo 13574 |
This theorem is referenced by: circlemethhgt 33313 |
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