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Mirrors > Home > MPE Home > Th. List > fzocongeq | Structured version Visualization version GIF version |
Description: Two different elements of a half-open range are not congruent mod its length. (Contributed by Stefan O'Rear, 6-Sep-2015.) |
Ref | Expression |
---|---|
fzocongeq | ⊢ ((𝐴 ∈ (𝐶..^𝐷) ∧ 𝐵 ∈ (𝐶..^𝐷)) → ((𝐷 − 𝐶) ∥ (𝐴 − 𝐵) ↔ 𝐴 = 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfzoel2 13500 | . . . . 5 ⊢ (𝐵 ∈ (𝐶..^𝐷) → 𝐷 ∈ ℤ) | |
2 | elfzoel1 13499 | . . . . 5 ⊢ (𝐵 ∈ (𝐶..^𝐷) → 𝐶 ∈ ℤ) | |
3 | 1, 2 | zsubcld 12545 | . . . 4 ⊢ (𝐵 ∈ (𝐶..^𝐷) → (𝐷 − 𝐶) ∈ ℤ) |
4 | elfzoelz 13501 | . . . . 5 ⊢ (𝐴 ∈ (𝐶..^𝐷) → 𝐴 ∈ ℤ) | |
5 | elfzoelz 13501 | . . . . 5 ⊢ (𝐵 ∈ (𝐶..^𝐷) → 𝐵 ∈ ℤ) | |
6 | zsubcl 12476 | . . . . 5 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝐴 − 𝐵) ∈ ℤ) | |
7 | 4, 5, 6 | syl2an 597 | . . . 4 ⊢ ((𝐴 ∈ (𝐶..^𝐷) ∧ 𝐵 ∈ (𝐶..^𝐷)) → (𝐴 − 𝐵) ∈ ℤ) |
8 | dvdsabsb 16093 | . . . 4 ⊢ (((𝐷 − 𝐶) ∈ ℤ ∧ (𝐴 − 𝐵) ∈ ℤ) → ((𝐷 − 𝐶) ∥ (𝐴 − 𝐵) ↔ (𝐷 − 𝐶) ∥ (abs‘(𝐴 − 𝐵)))) | |
9 | 3, 7, 8 | syl2an2 685 | . . 3 ⊢ ((𝐴 ∈ (𝐶..^𝐷) ∧ 𝐵 ∈ (𝐶..^𝐷)) → ((𝐷 − 𝐶) ∥ (𝐴 − 𝐵) ↔ (𝐷 − 𝐶) ∥ (abs‘(𝐴 − 𝐵)))) |
10 | fzomaxdif 15163 | . . . 4 ⊢ ((𝐴 ∈ (𝐶..^𝐷) ∧ 𝐵 ∈ (𝐶..^𝐷)) → (abs‘(𝐴 − 𝐵)) ∈ (0..^(𝐷 − 𝐶))) | |
11 | fzo0dvdseq 16140 | . . . 4 ⊢ ((abs‘(𝐴 − 𝐵)) ∈ (0..^(𝐷 − 𝐶)) → ((𝐷 − 𝐶) ∥ (abs‘(𝐴 − 𝐵)) ↔ (abs‘(𝐴 − 𝐵)) = 0)) | |
12 | 10, 11 | syl 17 | . . 3 ⊢ ((𝐴 ∈ (𝐶..^𝐷) ∧ 𝐵 ∈ (𝐶..^𝐷)) → ((𝐷 − 𝐶) ∥ (abs‘(𝐴 − 𝐵)) ↔ (abs‘(𝐴 − 𝐵)) = 0)) |
13 | 9, 12 | bitrd 279 | . 2 ⊢ ((𝐴 ∈ (𝐶..^𝐷) ∧ 𝐵 ∈ (𝐶..^𝐷)) → ((𝐷 − 𝐶) ∥ (𝐴 − 𝐵) ↔ (abs‘(𝐴 − 𝐵)) = 0)) |
14 | 4 | zcnd 12541 | . . . . 5 ⊢ (𝐴 ∈ (𝐶..^𝐷) → 𝐴 ∈ ℂ) |
15 | 5 | zcnd 12541 | . . . . 5 ⊢ (𝐵 ∈ (𝐶..^𝐷) → 𝐵 ∈ ℂ) |
16 | subcl 11334 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 − 𝐵) ∈ ℂ) | |
17 | 14, 15, 16 | syl2an 597 | . . . 4 ⊢ ((𝐴 ∈ (𝐶..^𝐷) ∧ 𝐵 ∈ (𝐶..^𝐷)) → (𝐴 − 𝐵) ∈ ℂ) |
18 | 17 | abs00ad 15110 | . . 3 ⊢ ((𝐴 ∈ (𝐶..^𝐷) ∧ 𝐵 ∈ (𝐶..^𝐷)) → ((abs‘(𝐴 − 𝐵)) = 0 ↔ (𝐴 − 𝐵) = 0)) |
19 | subeq0 11361 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 − 𝐵) = 0 ↔ 𝐴 = 𝐵)) | |
20 | 14, 15, 19 | syl2an 597 | . . 3 ⊢ ((𝐴 ∈ (𝐶..^𝐷) ∧ 𝐵 ∈ (𝐶..^𝐷)) → ((𝐴 − 𝐵) = 0 ↔ 𝐴 = 𝐵)) |
21 | 18, 20 | bitrd 279 | . 2 ⊢ ((𝐴 ∈ (𝐶..^𝐷) ∧ 𝐵 ∈ (𝐶..^𝐷)) → ((abs‘(𝐴 − 𝐵)) = 0 ↔ 𝐴 = 𝐵)) |
22 | 13, 21 | bitrd 279 | 1 ⊢ ((𝐴 ∈ (𝐶..^𝐷) ∧ 𝐵 ∈ (𝐶..^𝐷)) → ((𝐷 − 𝐶) ∥ (𝐴 − 𝐵) ↔ 𝐴 = 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 397 = wceq 1542 ∈ wcel 2107 class class class wbr 5104 ‘cfv 6492 (class class class)co 7350 ℂcc 10983 0cc0 10985 − cmin 11319 ℤcz 12433 ..^cfzo 13496 abscabs 15053 ∥ cdvds 16071 |
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 2709 ax-sep 5255 ax-nul 5262 ax-pow 5319 ax-pr 5383 ax-un 7663 ax-cnex 11041 ax-resscn 11042 ax-1cn 11043 ax-icn 11044 ax-addcl 11045 ax-addrcl 11046 ax-mulcl 11047 ax-mulrcl 11048 ax-mulcom 11049 ax-addass 11050 ax-mulass 11051 ax-distr 11052 ax-i2m1 11053 ax-1ne0 11054 ax-1rid 11055 ax-rnegex 11056 ax-rrecex 11057 ax-cnre 11058 ax-pre-lttri 11059 ax-pre-lttrn 11060 ax-pre-ltadd 11061 ax-pre-mulgt0 11062 ax-pre-sup 11063 |
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 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3064 df-rex 3073 df-rmo 3352 df-reu 3353 df-rab 3407 df-v 3446 df-sbc 3739 df-csb 3855 df-dif 3912 df-un 3914 df-in 3916 df-ss 3926 df-pss 3928 df-nul 4282 df-if 4486 df-pw 4561 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4865 df-iun 4955 df-br 5105 df-opab 5167 df-mpt 5188 df-tr 5222 df-id 5529 df-eprel 5535 df-po 5543 df-so 5544 df-fr 5586 df-we 5588 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6250 df-ord 6317 df-on 6318 df-lim 6319 df-suc 6320 df-iota 6444 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7306 df-ov 7353 df-oprab 7354 df-mpo 7355 df-om 7794 df-1st 7912 df-2nd 7913 df-frecs 8180 df-wrecs 8211 df-recs 8285 df-rdg 8324 df-er 8582 df-en 8818 df-dom 8819 df-sdom 8820 df-sup 9312 df-pnf 11125 df-mnf 11126 df-xr 11127 df-ltxr 11128 df-le 11129 df-sub 11321 df-neg 11322 df-div 11747 df-nn 12088 df-2 12150 df-3 12151 df-n0 12348 df-z 12434 df-uz 12697 df-rp 12845 df-fz 13354 df-fzo 13497 df-seq 13836 df-exp 13897 df-cj 14918 df-re 14919 df-im 14920 df-sqrt 15054 df-abs 15055 df-dvds 16072 |
This theorem is referenced by: addmodlteqALT 16142 odf1o2 19284 |
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