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Mirrors > Home > MPE Home > Th. List > negmod | Structured version Visualization version GIF version |
Description: The negation of a number modulo a positive number is equal to the difference of the modulus and the number modulo the modulus. (Contributed by AV, 5-Jul-2020.) |
Ref | Expression |
---|---|
negmod | ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → (-𝐴 mod 𝑁) = ((𝑁 − 𝐴) mod 𝑁)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rpcn 12669 | . . . . 5 ⊢ (𝑁 ∈ ℝ+ → 𝑁 ∈ ℂ) | |
2 | recn 10892 | . . . . 5 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℂ) | |
3 | negsub 11199 | . . . . 5 ⊢ ((𝑁 ∈ ℂ ∧ 𝐴 ∈ ℂ) → (𝑁 + -𝐴) = (𝑁 − 𝐴)) | |
4 | 1, 2, 3 | syl2anr 596 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → (𝑁 + -𝐴) = (𝑁 − 𝐴)) |
5 | 4 | eqcomd 2744 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → (𝑁 − 𝐴) = (𝑁 + -𝐴)) |
6 | 5 | oveq1d 7270 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → ((𝑁 − 𝐴) mod 𝑁) = ((𝑁 + -𝐴) mod 𝑁)) |
7 | 1 | mulid2d 10924 | . . . . 5 ⊢ (𝑁 ∈ ℝ+ → (1 · 𝑁) = 𝑁) |
8 | 7 | adantl 481 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → (1 · 𝑁) = 𝑁) |
9 | 8 | oveq1d 7270 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → ((1 · 𝑁) + -𝐴) = (𝑁 + -𝐴)) |
10 | 9 | oveq1d 7270 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → (((1 · 𝑁) + -𝐴) mod 𝑁) = ((𝑁 + -𝐴) mod 𝑁)) |
11 | 1cnd 10901 | . . . . . 6 ⊢ (𝐴 ∈ ℝ → 1 ∈ ℂ) | |
12 | mulcl 10886 | . . . . . 6 ⊢ ((1 ∈ ℂ ∧ 𝑁 ∈ ℂ) → (1 · 𝑁) ∈ ℂ) | |
13 | 11, 1, 12 | syl2an 595 | . . . . 5 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → (1 · 𝑁) ∈ ℂ) |
14 | renegcl 11214 | . . . . . . 7 ⊢ (𝐴 ∈ ℝ → -𝐴 ∈ ℝ) | |
15 | 14 | recnd 10934 | . . . . . 6 ⊢ (𝐴 ∈ ℝ → -𝐴 ∈ ℂ) |
16 | 15 | adantr 480 | . . . . 5 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → -𝐴 ∈ ℂ) |
17 | 13, 16 | addcomd 11107 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → ((1 · 𝑁) + -𝐴) = (-𝐴 + (1 · 𝑁))) |
18 | 17 | oveq1d 7270 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → (((1 · 𝑁) + -𝐴) mod 𝑁) = ((-𝐴 + (1 · 𝑁)) mod 𝑁)) |
19 | 14 | adantr 480 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → -𝐴 ∈ ℝ) |
20 | simpr 484 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → 𝑁 ∈ ℝ+) | |
21 | 1zzd 12281 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → 1 ∈ ℤ) | |
22 | modcyc 13554 | . . . 4 ⊢ ((-𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+ ∧ 1 ∈ ℤ) → ((-𝐴 + (1 · 𝑁)) mod 𝑁) = (-𝐴 mod 𝑁)) | |
23 | 19, 20, 21, 22 | syl3anc 1369 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → ((-𝐴 + (1 · 𝑁)) mod 𝑁) = (-𝐴 mod 𝑁)) |
24 | 18, 23 | eqtrd 2778 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → (((1 · 𝑁) + -𝐴) mod 𝑁) = (-𝐴 mod 𝑁)) |
25 | 6, 10, 24 | 3eqtr2rd 2785 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ+) → (-𝐴 mod 𝑁) = ((𝑁 − 𝐴) mod 𝑁)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2108 (class class class)co 7255 ℂcc 10800 ℝcr 10801 1c1 10803 + caddc 10805 · cmul 10807 − cmin 11135 -cneg 11136 ℤcz 12249 ℝ+crp 12659 mod cmo 13517 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 ax-pre-sup 10880 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-sup 9131 df-inf 9132 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-div 11563 df-nn 11904 df-n0 12164 df-z 12250 df-uz 12512 df-rp 12660 df-fl 13440 df-mod 13518 |
This theorem is referenced by: m1modnnsub1 13565 gausslemma2dlem5a 26423 |
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