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| Mirrors > Home > MPE Home > Th. List > nndivides | Structured version Visualization version GIF version | ||
| Description: Definition of the divides relation for positive integers. (Contributed by AV, 26-Jul-2021.) |
| Ref | Expression |
|---|---|
| nndivides | ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (𝑀 ∥ 𝑁 ↔ ∃𝑛 ∈ ℕ (𝑛 · 𝑀) = 𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nndiv 12286 | . 2 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (∃𝑛 ∈ ℕ (𝑀 · 𝑛) = 𝑁 ↔ (𝑁 / 𝑀) ∈ ℕ)) | |
| 2 | nncn 12248 | . . . . . 6 ⊢ (𝑛 ∈ ℕ → 𝑛 ∈ ℂ) | |
| 3 | 2 | adantl 481 | . . . . 5 ⊢ (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) ∧ 𝑛 ∈ ℕ) → 𝑛 ∈ ℂ) |
| 4 | nncn 12248 | . . . . . 6 ⊢ (𝑀 ∈ ℕ → 𝑀 ∈ ℂ) | |
| 5 | 4 | ad2antrr 726 | . . . . 5 ⊢ (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) ∧ 𝑛 ∈ ℕ) → 𝑀 ∈ ℂ) |
| 6 | 3, 5 | mulcomd 11256 | . . . 4 ⊢ (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) ∧ 𝑛 ∈ ℕ) → (𝑛 · 𝑀) = (𝑀 · 𝑛)) |
| 7 | 6 | eqeq1d 2737 | . . 3 ⊢ (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) ∧ 𝑛 ∈ ℕ) → ((𝑛 · 𝑀) = 𝑁 ↔ (𝑀 · 𝑛) = 𝑁)) |
| 8 | 7 | rexbidva 3162 | . 2 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (∃𝑛 ∈ ℕ (𝑛 · 𝑀) = 𝑁 ↔ ∃𝑛 ∈ ℕ (𝑀 · 𝑛) = 𝑁)) |
| 9 | nndivdvds 16281 | . . 3 ⊢ ((𝑁 ∈ ℕ ∧ 𝑀 ∈ ℕ) → (𝑀 ∥ 𝑁 ↔ (𝑁 / 𝑀) ∈ ℕ)) | |
| 10 | 9 | ancoms 458 | . 2 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (𝑀 ∥ 𝑁 ↔ (𝑁 / 𝑀) ∈ ℕ)) |
| 11 | 1, 8, 10 | 3bitr4rd 312 | 1 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (𝑀 ∥ 𝑁 ↔ ∃𝑛 ∈ ℕ (𝑛 · 𝑀) = 𝑁)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1540 ∈ wcel 2108 ∃wrex 3060 class class class wbr 5119 (class class class)co 7405 ℂcc 11127 · cmul 11134 / cdiv 11894 ℕcn 12240 ∥ cdvds 16272 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2707 ax-sep 5266 ax-nul 5276 ax-pow 5335 ax-pr 5402 ax-un 7729 ax-resscn 11186 ax-1cn 11187 ax-icn 11188 ax-addcl 11189 ax-addrcl 11190 ax-mulcl 11191 ax-mulrcl 11192 ax-mulcom 11193 ax-addass 11194 ax-mulass 11195 ax-distr 11196 ax-i2m1 11197 ax-1ne0 11198 ax-1rid 11199 ax-rnegex 11200 ax-rrecex 11201 ax-cnre 11202 ax-pre-lttri 11203 ax-pre-lttrn 11204 ax-pre-ltadd 11205 ax-pre-mulgt0 11206 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2065 df-mo 2539 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2809 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3359 df-reu 3360 df-rab 3416 df-v 3461 df-sbc 3766 df-csb 3875 df-dif 3929 df-un 3931 df-in 3933 df-ss 3943 df-pss 3946 df-nul 4309 df-if 4501 df-pw 4577 df-sn 4602 df-pr 4604 df-op 4608 df-uni 4884 df-iun 4969 df-br 5120 df-opab 5182 df-mpt 5202 df-tr 5230 df-id 5548 df-eprel 5553 df-po 5561 df-so 5562 df-fr 5606 df-we 5608 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-pred 6290 df-ord 6355 df-on 6356 df-lim 6357 df-suc 6358 df-iota 6484 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7362 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7862 df-2nd 7989 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-er 8719 df-en 8960 df-dom 8961 df-sdom 8962 df-pnf 11271 df-mnf 11272 df-xr 11273 df-ltxr 11274 df-le 11275 df-sub 11468 df-neg 11469 df-div 11895 df-nn 12241 df-z 12589 df-dvds 16273 |
| This theorem is referenced by: oddprmdvds 16923 2exple2exp 32824 unitscyglem2 42209 fmtnoprmfac1 47579 fmtnoprmfac2 47581 2pwp1prm 47603 |
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