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| Mirrors > Home > ILE Home > Th. List > dvdsdc | GIF version | ||
| Description: Divisibility is decidable. (Contributed by Jim Kingdon, 14-Nov-2021.) |
| Ref | Expression |
|---|---|
| dvdsdc | ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → DECID 𝑀 ∥ 𝑁) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpr 110 | . . . . 5 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → 𝑁 ∈ ℤ) | |
| 2 | simpl 109 | . . . . 5 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → 𝑀 ∈ ℕ) | |
| 3 | 1, 2 | zmodcld 10714 | . . . 4 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → (𝑁 mod 𝑀) ∈ ℕ0) |
| 4 | 3 | nn0zd 9704 | . . 3 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → (𝑁 mod 𝑀) ∈ ℤ) |
| 5 | 0z 9593 | . . 3 ⊢ 0 ∈ ℤ | |
| 6 | zdceq 9658 | . . 3 ⊢ (((𝑁 mod 𝑀) ∈ ℤ ∧ 0 ∈ ℤ) → DECID (𝑁 mod 𝑀) = 0) | |
| 7 | 4, 5, 6 | sylancl 413 | . 2 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → DECID (𝑁 mod 𝑀) = 0) |
| 8 | dvdsval3 12485 | . . 3 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → (𝑀 ∥ 𝑁 ↔ (𝑁 mod 𝑀) = 0)) | |
| 9 | 8 | dcbid 846 | . 2 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → (DECID 𝑀 ∥ 𝑁 ↔ DECID (𝑁 mod 𝑀) = 0)) |
| 10 | 7, 9 | mpbird 167 | 1 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → DECID 𝑀 ∥ 𝑁) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 DECID wdc 842 = wceq 1398 ∈ wcel 2205 class class class wbr 4111 (class class class)co 6052 0cc0 8132 ℕcn 9242 ℤcz 9582 mod cmo 10691 ∥ cdvds 12481 |
| 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-un 4556 ax-setind 4661 ax-cnex 8223 ax-resscn 8224 ax-1cn 8225 ax-1re 8226 ax-icn 8227 ax-addcl 8228 ax-addrcl 8229 ax-mulcl 8230 ax-mulrcl 8231 ax-addcom 8232 ax-mulcom 8233 ax-addass 8234 ax-mulass 8235 ax-distr 8236 ax-i2m1 8237 ax-0lt1 8238 ax-1rid 8239 ax-0id 8240 ax-rnegex 8241 ax-precex 8242 ax-cnre 8243 ax-pre-ltirr 8244 ax-pre-ltwlin 8245 ax-pre-lttrn 8246 ax-pre-apti 8247 ax-pre-ltadd 8248 ax-pre-mulgt0 8249 ax-pre-mulext 8250 ax-arch 8251 |
| This theorem depends on definitions: df-bi 117 df-dc 843 df-3or 1006 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-nel 2510 df-ral 2527 df-rex 2528 df-reu 2529 df-rmo 2530 df-rab 2531 df-v 2817 df-sbc 3045 df-csb 3141 df-dif 3215 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-int 3952 df-iun 3995 df-br 4112 df-opab 4174 df-mpt 4175 df-id 4416 df-po 4419 df-iso 4420 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-res 4763 df-ima 4764 df-iota 5314 df-fun 5356 df-fn 5357 df-f 5358 df-fv 5362 df-riota 6005 df-ov 6055 df-oprab 6056 df-mpo 6057 df-1st 6336 df-2nd 6337 df-pnf 8315 df-mnf 8316 df-xr 8317 df-ltxr 8318 df-le 8319 df-sub 8451 df-neg 8452 df-reap 8854 df-ap 8861 df-div 8952 df-inn 9243 df-n0 9502 df-z 9583 df-q 9958 df-rp 9993 df-fl 10637 df-mod 10692 df-dvds 12482 |
| This theorem is referenced by: zdvdsdc 12506 bitsdc 12641 gcdsupex 12661 gcdsupcl 12662 prmind2 12825 prmdc 12835 divgcdodd 12848 euclemma 12851 pw2dvdslemn 12870 hashdvds 12926 fermltl 12939 dvdsfi 12944 hashgcdeq 12945 odzcllem 12948 odzdvds 12951 fldivp1 13054 prmpwdvds 13061 infpnlem2 13066 lgslem4 15925 lgsval 15926 lgsfvalg 15927 lgsfcl2 15928 lgsval2lem 15932 lgsmod 15948 lgsdir2 15955 lgsne0 15960 gausslemma2dlem1a 15980 lgsquadlemofi 15998 lgsquadlem2 16000 m1lgs 16007 konigsberglem5 16536 |
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