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Mirrors > Home > ILE Home > Th. List > modqsub12d | GIF version |
Description: Subtraction property of the modulo operation. (Contributed by Jim Kingdon, 25-Oct-2021.) |
Ref | Expression |
---|---|
modqadd12d.1 | ⊢ (𝜑 → 𝐴 ∈ ℚ) |
modqadd12d.2 | ⊢ (𝜑 → 𝐵 ∈ ℚ) |
modqadd12d.3 | ⊢ (𝜑 → 𝐶 ∈ ℚ) |
modqadd12d.4 | ⊢ (𝜑 → 𝐷 ∈ ℚ) |
modqadd12d.5 | ⊢ (𝜑 → 𝐸 ∈ ℚ) |
modqadd12d.egt0 | ⊢ (𝜑 → 0 < 𝐸) |
modqadd12d.6 | ⊢ (𝜑 → (𝐴 mod 𝐸) = (𝐵 mod 𝐸)) |
modqadd12d.7 | ⊢ (𝜑 → (𝐶 mod 𝐸) = (𝐷 mod 𝐸)) |
Ref | Expression |
---|---|
modqsub12d | ⊢ (𝜑 → ((𝐴 − 𝐶) mod 𝐸) = ((𝐵 − 𝐷) mod 𝐸)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | modqadd12d.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℚ) | |
2 | modqadd12d.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℚ) | |
3 | modqadd12d.3 | . . . 4 ⊢ (𝜑 → 𝐶 ∈ ℚ) | |
4 | qnegcl 9574 | . . . 4 ⊢ (𝐶 ∈ ℚ → -𝐶 ∈ ℚ) | |
5 | 3, 4 | syl 14 | . . 3 ⊢ (𝜑 → -𝐶 ∈ ℚ) |
6 | modqadd12d.4 | . . . 4 ⊢ (𝜑 → 𝐷 ∈ ℚ) | |
7 | qnegcl 9574 | . . . 4 ⊢ (𝐷 ∈ ℚ → -𝐷 ∈ ℚ) | |
8 | 6, 7 | syl 14 | . . 3 ⊢ (𝜑 → -𝐷 ∈ ℚ) |
9 | modqadd12d.5 | . . 3 ⊢ (𝜑 → 𝐸 ∈ ℚ) | |
10 | modqadd12d.egt0 | . . 3 ⊢ (𝜑 → 0 < 𝐸) | |
11 | modqadd12d.6 | . . 3 ⊢ (𝜑 → (𝐴 mod 𝐸) = (𝐵 mod 𝐸)) | |
12 | modqadd12d.7 | . . . 4 ⊢ (𝜑 → (𝐶 mod 𝐸) = (𝐷 mod 𝐸)) | |
13 | 3, 6, 9, 10, 12 | modqnegd 10314 | . . 3 ⊢ (𝜑 → (-𝐶 mod 𝐸) = (-𝐷 mod 𝐸)) |
14 | 1, 2, 5, 8, 9, 10, 11, 13 | modqadd12d 10315 | . 2 ⊢ (𝜑 → ((𝐴 + -𝐶) mod 𝐸) = ((𝐵 + -𝐷) mod 𝐸)) |
15 | qcn 9572 | . . . . 5 ⊢ (𝐴 ∈ ℚ → 𝐴 ∈ ℂ) | |
16 | 1, 15 | syl 14 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℂ) |
17 | qcn 9572 | . . . . 5 ⊢ (𝐶 ∈ ℚ → 𝐶 ∈ ℂ) | |
18 | 3, 17 | syl 14 | . . . 4 ⊢ (𝜑 → 𝐶 ∈ ℂ) |
19 | 16, 18 | negsubd 8215 | . . 3 ⊢ (𝜑 → (𝐴 + -𝐶) = (𝐴 − 𝐶)) |
20 | 19 | oveq1d 5857 | . 2 ⊢ (𝜑 → ((𝐴 + -𝐶) mod 𝐸) = ((𝐴 − 𝐶) mod 𝐸)) |
21 | qcn 9572 | . . . . 5 ⊢ (𝐵 ∈ ℚ → 𝐵 ∈ ℂ) | |
22 | 2, 21 | syl 14 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ ℂ) |
23 | qcn 9572 | . . . . 5 ⊢ (𝐷 ∈ ℚ → 𝐷 ∈ ℂ) | |
24 | 6, 23 | syl 14 | . . . 4 ⊢ (𝜑 → 𝐷 ∈ ℂ) |
25 | 22, 24 | negsubd 8215 | . . 3 ⊢ (𝜑 → (𝐵 + -𝐷) = (𝐵 − 𝐷)) |
26 | 25 | oveq1d 5857 | . 2 ⊢ (𝜑 → ((𝐵 + -𝐷) mod 𝐸) = ((𝐵 − 𝐷) mod 𝐸)) |
27 | 14, 20, 26 | 3eqtr3d 2206 | 1 ⊢ (𝜑 → ((𝐴 − 𝐶) mod 𝐸) = ((𝐵 − 𝐷) mod 𝐸)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1343 ∈ wcel 2136 class class class wbr 3982 (class class class)co 5842 ℂcc 7751 0cc0 7753 + caddc 7756 < clt 7933 − cmin 8069 -cneg 8070 ℚcq 9557 mod cmo 10257 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-pow 4153 ax-pr 4187 ax-un 4411 ax-setind 4514 ax-cnex 7844 ax-resscn 7845 ax-1cn 7846 ax-1re 7847 ax-icn 7848 ax-addcl 7849 ax-addrcl 7850 ax-mulcl 7851 ax-mulrcl 7852 ax-addcom 7853 ax-mulcom 7854 ax-addass 7855 ax-mulass 7856 ax-distr 7857 ax-i2m1 7858 ax-0lt1 7859 ax-1rid 7860 ax-0id 7861 ax-rnegex 7862 ax-precex 7863 ax-cnre 7864 ax-pre-ltirr 7865 ax-pre-ltwlin 7866 ax-pre-lttrn 7867 ax-pre-apti 7868 ax-pre-ltadd 7869 ax-pre-mulgt0 7870 ax-pre-mulext 7871 ax-arch 7872 |
This theorem depends on definitions: df-bi 116 df-3or 969 df-3an 970 df-tru 1346 df-fal 1349 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ne 2337 df-nel 2432 df-ral 2449 df-rex 2450 df-reu 2451 df-rmo 2452 df-rab 2453 df-v 2728 df-sbc 2952 df-csb 3046 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-int 3825 df-iun 3868 df-br 3983 df-opab 4044 df-mpt 4045 df-id 4271 df-po 4274 df-iso 4275 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-dm 4614 df-rn 4615 df-res 4616 df-ima 4617 df-iota 5153 df-fun 5190 df-fn 5191 df-f 5192 df-fv 5196 df-riota 5798 df-ov 5845 df-oprab 5846 df-mpo 5847 df-1st 6108 df-2nd 6109 df-pnf 7935 df-mnf 7936 df-xr 7937 df-ltxr 7938 df-le 7939 df-sub 8071 df-neg 8072 df-reap 8473 df-ap 8480 df-div 8569 df-inn 8858 df-n0 9115 df-z 9192 df-q 9558 df-rp 9590 df-fl 10205 df-mod 10258 |
This theorem is referenced by: modqsubmod 10317 modqsubmodmod 10318 |
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