qnegmod - Intuitionistic Logic Explorer

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Theorem qnegmod 10440

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 Jim Kingdon, 24-Oct-2021.)

**Assertion**
Ref	Expression
qnegmod	⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → (-𝐴 mod 𝑁) = ((𝑁 − 𝐴) mod 𝑁))

**Proof of Theorem qnegmod**
Step	Hyp	Ref	Expression
1		qcn 9699	. . . . . 6 ⊢ (𝑁 ∈ ℚ → 𝑁 ∈ ℂ)
2	1	3ad2ant2 1021	. . . . 5 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → 𝑁 ∈ ℂ)
3		qcn 9699	. . . . . 6 ⊢ (𝐴 ∈ ℚ → 𝐴 ∈ ℂ)
4	3	3ad2ant1 1020	. . . . 5 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → 𝐴 ∈ ℂ)
5	2, 4	negsubd 8336	. . . 4 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → (𝑁 + -𝐴) = (𝑁 − 𝐴))
6	5	eqcomd 2199	. . 3 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → (𝑁 − 𝐴) = (𝑁 + -𝐴))
7	6	oveq1d 5933	. 2 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → ((𝑁 − 𝐴) mod 𝑁) = ((𝑁 + -𝐴) mod 𝑁))
8	2	mulid2d 8038	. . . 4 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → (1 · 𝑁) = 𝑁)
9	8	oveq1d 5933	. . 3 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → ((1 · 𝑁) + -𝐴) = (𝑁 + -𝐴))
10	9	oveq1d 5933	. 2 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → (((1 · 𝑁) + -𝐴) mod 𝑁) = ((𝑁 + -𝐴) mod 𝑁))
11		1cnd 8035	. . . . . 6 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → 1 ∈ ℂ)
12	11, 2	mulcld 8040	. . . . 5 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → (1 · 𝑁) ∈ ℂ)
13		qnegcl 9701	. . . . . . 7 ⊢ (𝐴 ∈ ℚ → -𝐴 ∈ ℚ)
14		qcn 9699	. . . . . . 7 ⊢ (-𝐴 ∈ ℚ → -𝐴 ∈ ℂ)
15	13, 14	syl 14	. . . . . 6 ⊢ (𝐴 ∈ ℚ → -𝐴 ∈ ℂ)
16	15	3ad2ant1 1020	. . . . 5 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → -𝐴 ∈ ℂ)
17	12, 16	addcomd 8170	. . . 4 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → ((1 · 𝑁) + -𝐴) = (-𝐴 + (1 · 𝑁)))
18	17	oveq1d 5933	. . 3 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → (((1 · 𝑁) + -𝐴) mod 𝑁) = ((-𝐴 + (1 · 𝑁)) mod 𝑁))
19	13	3ad2ant1 1020	. . . 4 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → -𝐴 ∈ ℚ)
20		1zzd 9344	. . . 4 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → 1 ∈ ℤ)
21		simp2 1000	. . . 4 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → 𝑁 ∈ ℚ)
22		simp3 1001	. . . 4 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → 0 < 𝑁)
23		modqcyc 10430	. . . 4 ⊢ (((-𝐴 ∈ ℚ ∧ 1 ∈ ℤ) ∧ (𝑁 ∈ ℚ ∧ 0 < 𝑁)) → ((-𝐴 + (1 · 𝑁)) mod 𝑁) = (-𝐴 mod 𝑁))
24	19, 20, 21, 22, 23	syl22anc 1250	. . 3 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → ((-𝐴 + (1 · 𝑁)) mod 𝑁) = (-𝐴 mod 𝑁))
25	18, 24	eqtrd 2226	. 2 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → (((1 · 𝑁) + -𝐴) mod 𝑁) = (-𝐴 mod 𝑁))
26	7, 10, 25	3eqtr2rd 2233	1 ⊢ ((𝐴 ∈ ℚ ∧ 𝑁 ∈ ℚ ∧ 0 < 𝑁) → (-𝐴 mod 𝑁) = ((𝑁 − 𝐴) mod 𝑁))

Colors of variables: wff set class

Syntax hints: → wi 4 ∧ w3a 980 = wceq 1364 ∈ wcel 2164 class class class wbr 4029 (class class class)co 5918 ℂcc 7870 0cc0 7872 1c1 7873 + caddc 7875 · cmul 7877 < clt 8054 − cmin 8190 -cneg 8191 ℤcz 9317 ℚcq 9684 mod cmo 10393

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2166 ax-14 2167 ax-ext 2175 ax-sep 4147 ax-pow 4203 ax-pr 4238 ax-un 4464 ax-setind 4569 ax-cnex 7963 ax-resscn 7964 ax-1cn 7965 ax-1re 7966 ax-icn 7967 ax-addcl 7968 ax-addrcl 7969 ax-mulcl 7970 ax-mulrcl 7971 ax-addcom 7972 ax-mulcom 7973 ax-addass 7974 ax-mulass 7975 ax-distr 7976 ax-i2m1 7977 ax-0lt1 7978 ax-1rid 7979 ax-0id 7980 ax-rnegex 7981 ax-precex 7982 ax-cnre 7983 ax-pre-ltirr 7984 ax-pre-ltwlin 7985 ax-pre-lttrn 7986 ax-pre-apti 7987 ax-pre-ltadd 7988 ax-pre-mulgt0 7989 ax-pre-mulext 7990 ax-arch 7991

This theorem depends on definitions: df-bi 117 df-3or 981 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ne 2365 df-nel 2460 df-ral 2477 df-rex 2478 df-reu 2479 df-rmo 2480 df-rab 2481 df-v 2762 df-sbc 2986 df-csb 3081 df-dif 3155 df-un 3157 df-in 3159 df-ss 3166 df-pw 3603 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-int 3871 df-iun 3914 df-br 4030 df-opab 4091 df-mpt 4092 df-id 4324 df-po 4327 df-iso 4328 df-xp 4665 df-rel 4666 df-cnv 4667 df-co 4668 df-dm 4669 df-rn 4670 df-res 4671 df-ima 4672 df-iota 5215 df-fun 5256 df-fn 5257 df-f 5258 df-fv 5262 df-riota 5873 df-ov 5921 df-oprab 5922 df-mpo 5923 df-1st 6193 df-2nd 6194 df-pnf 8056 df-mnf 8057 df-xr 8058 df-ltxr 8059 df-le 8060 df-sub 8192 df-neg 8193 df-reap 8594 df-ap 8601 df-div 8692 df-inn 8983 df-n0 9241 df-z 9318 df-q 9685 df-rp 9720 df-fl 10339 df-mod 10394

This theorem is referenced by: m1modnnsub1 10441 gausslemma2dlem5a 15181

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