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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 10613 | . . . 4 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → (𝑁 mod 𝑀) ∈ ℕ0) |
| 4 | 3 | nn0zd 9605 | . . 3 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → (𝑁 mod 𝑀) ∈ ℤ) |
| 5 | 0z 9495 | . . 3 ⊢ 0 ∈ ℤ | |
| 6 | zdceq 9560 | . . 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 12375 | . . 3 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℤ) → (𝑀 ∥ 𝑁 ↔ (𝑁 mod 𝑀) = 0)) | |
| 9 | 8 | dcbid 845 | . 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 841 = wceq 1397 ∈ wcel 2201 class class class wbr 4089 (class class class)co 6023 0cc0 8037 ℕcn 9148 ℤcz 9484 mod cmo 10590 ∥ cdvds 12371 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2203 ax-14 2204 ax-ext 2212 ax-sep 4208 ax-pow 4266 ax-pr 4301 ax-un 4532 ax-setind 4637 ax-cnex 8128 ax-resscn 8129 ax-1cn 8130 ax-1re 8131 ax-icn 8132 ax-addcl 8133 ax-addrcl 8134 ax-mulcl 8135 ax-mulrcl 8136 ax-addcom 8137 ax-mulcom 8138 ax-addass 8139 ax-mulass 8140 ax-distr 8141 ax-i2m1 8142 ax-0lt1 8143 ax-1rid 8144 ax-0id 8145 ax-rnegex 8146 ax-precex 8147 ax-cnre 8148 ax-pre-ltirr 8149 ax-pre-ltwlin 8150 ax-pre-lttrn 8151 ax-pre-apti 8152 ax-pre-ltadd 8153 ax-pre-mulgt0 8154 ax-pre-mulext 8155 ax-arch 8156 |
| This theorem depends on definitions: df-bi 117 df-dc 842 df-3or 1005 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1810 df-eu 2081 df-mo 2082 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-ne 2402 df-nel 2497 df-ral 2514 df-rex 2515 df-reu 2516 df-rmo 2517 df-rab 2518 df-v 2803 df-sbc 3031 df-csb 3127 df-dif 3201 df-un 3203 df-in 3205 df-ss 3212 df-pw 3655 df-sn 3676 df-pr 3677 df-op 3679 df-uni 3895 df-int 3930 df-iun 3973 df-br 4090 df-opab 4152 df-mpt 4153 df-id 4392 df-po 4395 df-iso 4396 df-xp 4733 df-rel 4734 df-cnv 4735 df-co 4736 df-dm 4737 df-rn 4738 df-res 4739 df-ima 4740 df-iota 5288 df-fun 5330 df-fn 5331 df-f 5332 df-fv 5336 df-riota 5976 df-ov 6026 df-oprab 6027 df-mpo 6028 df-1st 6308 df-2nd 6309 df-pnf 8221 df-mnf 8222 df-xr 8223 df-ltxr 8224 df-le 8225 df-sub 8357 df-neg 8358 df-reap 8760 df-ap 8767 df-div 8858 df-inn 9149 df-n0 9408 df-z 9485 df-q 9859 df-rp 9894 df-fl 10536 df-mod 10591 df-dvds 12372 |
| This theorem is referenced by: zdvdsdc 12396 bitsdc 12531 gcdsupex 12551 gcdsupcl 12552 prmind2 12715 prmdc 12725 divgcdodd 12738 euclemma 12741 pw2dvdslemn 12760 hashdvds 12816 fermltl 12829 dvdsfi 12834 hashgcdeq 12835 odzcllem 12838 odzdvds 12841 fldivp1 12944 prmpwdvds 12951 infpnlem2 12956 lgslem4 15761 lgsval 15762 lgsfvalg 15763 lgsfcl2 15764 lgsval2lem 15768 lgsmod 15784 lgsdir2 15791 lgsne0 15796 gausslemma2dlem1a 15816 lgsquadlemofi 15834 lgsquadlem2 15836 m1lgs 15843 konigsberglem5 16372 |
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