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Mathbox for Stefan O'Rear |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > fzneg | Structured version Visualization version GIF version |
Description: Reflection of a finite range of integers about 0. (Contributed by Stefan O'Rear, 4-Oct-2014.) |
Ref | Expression |
---|---|
fzneg | ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐴 ∈ (𝐵...𝐶) ↔ -𝐴 ∈ (-𝐶...-𝐵))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ancom 460 | . . 3 ⊢ ((𝐵 ≤ 𝐴 ∧ 𝐴 ≤ 𝐶) ↔ (𝐴 ≤ 𝐶 ∧ 𝐵 ≤ 𝐴)) | |
2 | zre 12624 | . . . . . 6 ⊢ (𝐴 ∈ ℤ → 𝐴 ∈ ℝ) | |
3 | 2 | 3ad2ant1 1134 | . . . . 5 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → 𝐴 ∈ ℝ) |
4 | zre 12624 | . . . . . 6 ⊢ (𝐶 ∈ ℤ → 𝐶 ∈ ℝ) | |
5 | 4 | 3ad2ant3 1136 | . . . . 5 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → 𝐶 ∈ ℝ) |
6 | 3, 5 | lenegd 11849 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐴 ≤ 𝐶 ↔ -𝐶 ≤ -𝐴)) |
7 | zre 12624 | . . . . . 6 ⊢ (𝐵 ∈ ℤ → 𝐵 ∈ ℝ) | |
8 | 7 | 3ad2ant2 1135 | . . . . 5 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → 𝐵 ∈ ℝ) |
9 | 8, 3 | lenegd 11849 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐵 ≤ 𝐴 ↔ -𝐴 ≤ -𝐵)) |
10 | 6, 9 | anbi12d 632 | . . 3 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → ((𝐴 ≤ 𝐶 ∧ 𝐵 ≤ 𝐴) ↔ (-𝐶 ≤ -𝐴 ∧ -𝐴 ≤ -𝐵))) |
11 | 1, 10 | bitrid 283 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → ((𝐵 ≤ 𝐴 ∧ 𝐴 ≤ 𝐶) ↔ (-𝐶 ≤ -𝐴 ∧ -𝐴 ≤ -𝐵))) |
12 | elfz 13559 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐴 ∈ (𝐵...𝐶) ↔ (𝐵 ≤ 𝐴 ∧ 𝐴 ≤ 𝐶))) | |
13 | znegcl 12659 | . . . 4 ⊢ (𝐴 ∈ ℤ → -𝐴 ∈ ℤ) | |
14 | znegcl 12659 | . . . 4 ⊢ (𝐶 ∈ ℤ → -𝐶 ∈ ℤ) | |
15 | znegcl 12659 | . . . 4 ⊢ (𝐵 ∈ ℤ → -𝐵 ∈ ℤ) | |
16 | elfz 13559 | . . . 4 ⊢ ((-𝐴 ∈ ℤ ∧ -𝐶 ∈ ℤ ∧ -𝐵 ∈ ℤ) → (-𝐴 ∈ (-𝐶...-𝐵) ↔ (-𝐶 ≤ -𝐴 ∧ -𝐴 ≤ -𝐵))) | |
17 | 13, 14, 15, 16 | syl3an 1161 | . . 3 ⊢ ((𝐴 ∈ ℤ ∧ 𝐶 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (-𝐴 ∈ (-𝐶...-𝐵) ↔ (-𝐶 ≤ -𝐴 ∧ -𝐴 ≤ -𝐵))) |
18 | 17 | 3com23 1127 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (-𝐴 ∈ (-𝐶...-𝐵) ↔ (-𝐶 ≤ -𝐴 ∧ -𝐴 ≤ -𝐵))) |
19 | 11, 12, 18 | 3bitr4d 311 | 1 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐴 ∈ (𝐵...𝐶) ↔ -𝐴 ∈ (-𝐶...-𝐵))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1087 ∈ wcel 2108 class class class wbr 5151 (class class class)co 7438 ℝcr 11161 ≤ cle 11303 -cneg 11500 ℤcz 12620 ...cfz 13553 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2708 ax-sep 5305 ax-nul 5315 ax-pow 5374 ax-pr 5441 ax-un 7761 ax-cnex 11218 ax-resscn 11219 ax-1cn 11220 ax-icn 11221 ax-addcl 11222 ax-addrcl 11223 ax-mulcl 11224 ax-mulrcl 11225 ax-mulcom 11226 ax-addass 11227 ax-mulass 11228 ax-distr 11229 ax-i2m1 11230 ax-1ne0 11231 ax-1rid 11232 ax-rnegex 11233 ax-rrecex 11234 ax-cnre 11235 ax-pre-lttri 11236 ax-pre-lttrn 11237 ax-pre-ltadd 11238 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2065 df-mo 2540 df-eu 2569 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2892 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-reu 3381 df-rab 3437 df-v 3483 df-sbc 3795 df-csb 3912 df-dif 3969 df-un 3971 df-in 3973 df-ss 3983 df-pss 3986 df-nul 4343 df-if 4535 df-pw 4610 df-sn 4635 df-pr 4637 df-op 4641 df-uni 4916 df-iun 5001 df-br 5152 df-opab 5214 df-mpt 5235 df-tr 5269 df-id 5587 df-eprel 5593 df-po 5601 df-so 5602 df-fr 5645 df-we 5647 df-xp 5699 df-rel 5700 df-cnv 5701 df-co 5702 df-dm 5703 df-rn 5704 df-res 5705 df-ima 5706 df-pred 6329 df-ord 6395 df-on 6396 df-lim 6397 df-suc 6398 df-iota 6522 df-fun 6571 df-fn 6572 df-f 6573 df-f1 6574 df-fo 6575 df-f1o 6576 df-fv 6577 df-riota 7395 df-ov 7441 df-oprab 7442 df-mpo 7443 df-om 7895 df-2nd 8023 df-frecs 8314 df-wrecs 8345 df-recs 8419 df-rdg 8458 df-er 8753 df-en 8994 df-dom 8995 df-sdom 8996 df-pnf 11304 df-mnf 11305 df-xr 11306 df-ltxr 11307 df-le 11308 df-sub 11501 df-neg 11502 df-nn 12274 df-z 12621 df-fz 13554 |
This theorem is referenced by: acongeq 42988 |
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