Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > zmodcl | GIF version |
Description: Closure law for the modulo operation restricted to integers. (Contributed by NM, 27-Nov-2008.) |
Ref | Expression |
---|---|
zmodcl | ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → (𝐴 mod 𝐵) ∈ ℕ0) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | zq 9517 | . . . . 5 ⊢ (𝐴 ∈ ℤ → 𝐴 ∈ ℚ) | |
2 | 1 | adantr 274 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → 𝐴 ∈ ℚ) |
3 | nnq 9524 | . . . . 5 ⊢ (𝐵 ∈ ℕ → 𝐵 ∈ ℚ) | |
4 | 3 | adantl 275 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → 𝐵 ∈ ℚ) |
5 | nngt0 8841 | . . . . 5 ⊢ (𝐵 ∈ ℕ → 0 < 𝐵) | |
6 | 5 | adantl 275 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → 0 < 𝐵) |
7 | modqval 10205 | . . . 4 ⊢ ((𝐴 ∈ ℚ ∧ 𝐵 ∈ ℚ ∧ 0 < 𝐵) → (𝐴 mod 𝐵) = (𝐴 − (𝐵 · (⌊‘(𝐴 / 𝐵))))) | |
8 | 2, 4, 6, 7 | syl3anc 1220 | . . 3 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → (𝐴 mod 𝐵) = (𝐴 − (𝐵 · (⌊‘(𝐴 / 𝐵))))) |
9 | nnz 9169 | . . . . . 6 ⊢ (𝐵 ∈ ℕ → 𝐵 ∈ ℤ) | |
10 | 9 | adantl 275 | . . . . 5 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → 𝐵 ∈ ℤ) |
11 | znq 9515 | . . . . . 6 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → (𝐴 / 𝐵) ∈ ℚ) | |
12 | 11 | flqcld 10158 | . . . . 5 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → (⌊‘(𝐴 / 𝐵)) ∈ ℤ) |
13 | 10, 12 | zmulcld 9275 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → (𝐵 · (⌊‘(𝐴 / 𝐵))) ∈ ℤ) |
14 | zsubcl 9191 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ (𝐵 · (⌊‘(𝐴 / 𝐵))) ∈ ℤ) → (𝐴 − (𝐵 · (⌊‘(𝐴 / 𝐵)))) ∈ ℤ) | |
15 | 13, 14 | syldan 280 | . . 3 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → (𝐴 − (𝐵 · (⌊‘(𝐴 / 𝐵)))) ∈ ℤ) |
16 | 8, 15 | eqeltrd 2234 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → (𝐴 mod 𝐵) ∈ ℤ) |
17 | modqge0 10213 | . . 3 ⊢ ((𝐴 ∈ ℚ ∧ 𝐵 ∈ ℚ ∧ 0 < 𝐵) → 0 ≤ (𝐴 mod 𝐵)) | |
18 | 2, 4, 6, 17 | syl3anc 1220 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → 0 ≤ (𝐴 mod 𝐵)) |
19 | elnn0z 9163 | . 2 ⊢ ((𝐴 mod 𝐵) ∈ ℕ0 ↔ ((𝐴 mod 𝐵) ∈ ℤ ∧ 0 ≤ (𝐴 mod 𝐵))) | |
20 | 16, 18, 19 | sylanbrc 414 | 1 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℕ) → (𝐴 mod 𝐵) ∈ ℕ0) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 = wceq 1335 ∈ wcel 2128 class class class wbr 3965 ‘cfv 5167 (class class class)co 5818 0cc0 7715 · cmul 7720 < clt 7895 ≤ cle 7896 − cmin 8029 / cdiv 8528 ℕcn 8816 ℕ0cn0 9073 ℤcz 9150 ℚcq 9510 ⌊cfl 10149 mod cmo 10203 |
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 1427 ax-7 1428 ax-gen 1429 ax-ie1 1473 ax-ie2 1474 ax-8 1484 ax-10 1485 ax-11 1486 ax-i12 1487 ax-bndl 1489 ax-4 1490 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-13 2130 ax-14 2131 ax-ext 2139 ax-sep 4082 ax-pow 4134 ax-pr 4168 ax-un 4392 ax-setind 4494 ax-cnex 7806 ax-resscn 7807 ax-1cn 7808 ax-1re 7809 ax-icn 7810 ax-addcl 7811 ax-addrcl 7812 ax-mulcl 7813 ax-mulrcl 7814 ax-addcom 7815 ax-mulcom 7816 ax-addass 7817 ax-mulass 7818 ax-distr 7819 ax-i2m1 7820 ax-0lt1 7821 ax-1rid 7822 ax-0id 7823 ax-rnegex 7824 ax-precex 7825 ax-cnre 7826 ax-pre-ltirr 7827 ax-pre-ltwlin 7828 ax-pre-lttrn 7829 ax-pre-apti 7830 ax-pre-ltadd 7831 ax-pre-mulgt0 7832 ax-pre-mulext 7833 ax-arch 7834 |
This theorem depends on definitions: df-bi 116 df-3or 964 df-3an 965 df-tru 1338 df-fal 1341 df-nf 1441 df-sb 1743 df-eu 2009 df-mo 2010 df-clab 2144 df-cleq 2150 df-clel 2153 df-nfc 2288 df-ne 2328 df-nel 2423 df-ral 2440 df-rex 2441 df-reu 2442 df-rmo 2443 df-rab 2444 df-v 2714 df-sbc 2938 df-csb 3032 df-dif 3104 df-un 3106 df-in 3108 df-ss 3115 df-pw 3545 df-sn 3566 df-pr 3567 df-op 3569 df-uni 3773 df-int 3808 df-iun 3851 df-br 3966 df-opab 4026 df-mpt 4027 df-id 4252 df-po 4255 df-iso 4256 df-xp 4589 df-rel 4590 df-cnv 4591 df-co 4592 df-dm 4593 df-rn 4594 df-res 4595 df-ima 4596 df-iota 5132 df-fun 5169 df-fn 5170 df-f 5171 df-fv 5175 df-riota 5774 df-ov 5821 df-oprab 5822 df-mpo 5823 df-1st 6082 df-2nd 6083 df-pnf 7897 df-mnf 7898 df-xr 7899 df-ltxr 7900 df-le 7901 df-sub 8031 df-neg 8032 df-reap 8433 df-ap 8440 df-div 8529 df-inn 8817 df-n0 9074 df-z 9151 df-q 9511 df-rp 9543 df-fl 10151 df-mod 10204 |
This theorem is referenced by: zmodcld 10226 zmodfz 10227 modaddmodup 10268 modaddmodlo 10269 modfsummodlemstep 11336 divalglemnn 11790 divalgmod 11799 modgcd 11855 eucalgf 11912 eucalginv 11913 |
Copyright terms: Public domain | W3C validator |