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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 10534 | . . . 4 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → (𝑁 mod 𝑀) ∈ ℕ0) |
| 4 | 3 | nn0zd 9535 | . . 3 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → (𝑁 mod 𝑀) ∈ ℤ) |
| 5 | 0z 9425 | . . 3 ⊢ 0 ∈ ℤ | |
| 6 | zdceq 9490 | . . 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 12268 | . . 3 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → (𝑀 ∥ 𝑁 ↔ (𝑁 mod 𝑀) = 0)) | |
| 9 | 8 | dcbid 842 | . 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 838 = wceq 1375 ∈ wcel 2180 class class class wbr 4062 (class class class)co 5974 0cc0 7967 ℕcn 9078 ℤcz 9414 mod cmo 10511 ∥ cdvds 12264 |
| 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 617 ax-in2 618 ax-io 713 ax-5 1473 ax-7 1474 ax-gen 1475 ax-ie1 1519 ax-ie2 1520 ax-8 1530 ax-10 1531 ax-11 1532 ax-i12 1533 ax-bndl 1535 ax-4 1536 ax-17 1552 ax-i9 1556 ax-ial 1560 ax-i5r 1561 ax-13 2182 ax-14 2183 ax-ext 2191 ax-sep 4181 ax-pow 4237 ax-pr 4272 ax-un 4501 ax-setind 4606 ax-cnex 8058 ax-resscn 8059 ax-1cn 8060 ax-1re 8061 ax-icn 8062 ax-addcl 8063 ax-addrcl 8064 ax-mulcl 8065 ax-mulrcl 8066 ax-addcom 8067 ax-mulcom 8068 ax-addass 8069 ax-mulass 8070 ax-distr 8071 ax-i2m1 8072 ax-0lt1 8073 ax-1rid 8074 ax-0id 8075 ax-rnegex 8076 ax-precex 8077 ax-cnre 8078 ax-pre-ltirr 8079 ax-pre-ltwlin 8080 ax-pre-lttrn 8081 ax-pre-apti 8082 ax-pre-ltadd 8083 ax-pre-mulgt0 8084 ax-pre-mulext 8085 ax-arch 8086 |
| This theorem depends on definitions: df-bi 117 df-dc 839 df-3or 984 df-3an 985 df-tru 1378 df-fal 1381 df-nf 1487 df-sb 1789 df-eu 2060 df-mo 2061 df-clab 2196 df-cleq 2202 df-clel 2205 df-nfc 2341 df-ne 2381 df-nel 2476 df-ral 2493 df-rex 2494 df-reu 2495 df-rmo 2496 df-rab 2497 df-v 2781 df-sbc 3009 df-csb 3105 df-dif 3179 df-un 3181 df-in 3183 df-ss 3190 df-pw 3631 df-sn 3652 df-pr 3653 df-op 3655 df-uni 3868 df-int 3903 df-iun 3946 df-br 4063 df-opab 4125 df-mpt 4126 df-id 4361 df-po 4364 df-iso 4365 df-xp 4702 df-rel 4703 df-cnv 4704 df-co 4705 df-dm 4706 df-rn 4707 df-res 4708 df-ima 4709 df-iota 5254 df-fun 5296 df-fn 5297 df-f 5298 df-fv 5302 df-riota 5927 df-ov 5977 df-oprab 5978 df-mpo 5979 df-1st 6256 df-2nd 6257 df-pnf 8151 df-mnf 8152 df-xr 8153 df-ltxr 8154 df-le 8155 df-sub 8287 df-neg 8288 df-reap 8690 df-ap 8697 df-div 8788 df-inn 9079 df-n0 9338 df-z 9415 df-q 9783 df-rp 9818 df-fl 10457 df-mod 10512 df-dvds 12265 |
| This theorem is referenced by: zdvdsdc 12289 bitsdc 12424 gcdsupex 12444 gcdsupcl 12445 prmind2 12608 prmdc 12618 divgcdodd 12631 euclemma 12634 pw2dvdslemn 12653 hashdvds 12709 fermltl 12722 dvdsfi 12727 hashgcdeq 12728 odzcllem 12731 odzdvds 12734 fldivp1 12837 prmpwdvds 12844 infpnlem2 12849 lgslem4 15647 lgsval 15648 lgsfvalg 15649 lgsfcl2 15650 lgsval2lem 15654 lgsmod 15670 lgsdir2 15677 lgsne0 15682 gausslemma2dlem1a 15702 lgsquadlemofi 15720 lgsquadlem2 15722 m1lgs 15729 |
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