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Mirrors > Home > MPE Home > Th. List > euclemma | Structured version Visualization version GIF version |
Description: Euclid's lemma. A prime number divides the product of two integers iff it divides at least one of them. Theorem 1.9 in [ApostolNT] p. 17. (Contributed by Paul Chapman, 17-Nov-2012.) |
Ref | Expression |
---|---|
euclemma | ⊢ ((𝑃 ∈ ℙ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑃 ∥ (𝑀 · 𝑁) ↔ (𝑃 ∥ 𝑀 ∨ 𝑃 ∥ 𝑁))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | coprm 16644 | . . . . . . 7 ⊢ ((𝑃 ∈ ℙ ∧ 𝑀 ∈ ℤ) → (¬ 𝑃 ∥ 𝑀 ↔ (𝑃 gcd 𝑀) = 1)) | |
2 | 1 | 3adant3 1133 | . . . . . 6 ⊢ ((𝑃 ∈ ℙ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (¬ 𝑃 ∥ 𝑀 ↔ (𝑃 gcd 𝑀) = 1)) |
3 | 2 | anbi2d 630 | . . . . 5 ⊢ ((𝑃 ∈ ℙ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → ((𝑃 ∥ (𝑀 · 𝑁) ∧ ¬ 𝑃 ∥ 𝑀) ↔ (𝑃 ∥ (𝑀 · 𝑁) ∧ (𝑃 gcd 𝑀) = 1))) |
4 | prmz 16608 | . . . . . 6 ⊢ (𝑃 ∈ ℙ → 𝑃 ∈ ℤ) | |
5 | coprmdvds 16586 | . . . . . 6 ⊢ ((𝑃 ∈ ℤ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → ((𝑃 ∥ (𝑀 · 𝑁) ∧ (𝑃 gcd 𝑀) = 1) → 𝑃 ∥ 𝑁)) | |
6 | 4, 5 | syl3an1 1164 | . . . . 5 ⊢ ((𝑃 ∈ ℙ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → ((𝑃 ∥ (𝑀 · 𝑁) ∧ (𝑃 gcd 𝑀) = 1) → 𝑃 ∥ 𝑁)) |
7 | 3, 6 | sylbid 239 | . . . 4 ⊢ ((𝑃 ∈ ℙ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → ((𝑃 ∥ (𝑀 · 𝑁) ∧ ¬ 𝑃 ∥ 𝑀) → 𝑃 ∥ 𝑁)) |
8 | 7 | expd 417 | . . 3 ⊢ ((𝑃 ∈ ℙ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑃 ∥ (𝑀 · 𝑁) → (¬ 𝑃 ∥ 𝑀 → 𝑃 ∥ 𝑁))) |
9 | df-or 847 | . . 3 ⊢ ((𝑃 ∥ 𝑀 ∨ 𝑃 ∥ 𝑁) ↔ (¬ 𝑃 ∥ 𝑀 → 𝑃 ∥ 𝑁)) | |
10 | 8, 9 | syl6ibr 252 | . 2 ⊢ ((𝑃 ∈ ℙ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑃 ∥ (𝑀 · 𝑁) → (𝑃 ∥ 𝑀 ∨ 𝑃 ∥ 𝑁))) |
11 | ordvdsmul 16239 | . . 3 ⊢ ((𝑃 ∈ ℤ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → ((𝑃 ∥ 𝑀 ∨ 𝑃 ∥ 𝑁) → 𝑃 ∥ (𝑀 · 𝑁))) | |
12 | 4, 11 | syl3an1 1164 | . 2 ⊢ ((𝑃 ∈ ℙ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → ((𝑃 ∥ 𝑀 ∨ 𝑃 ∥ 𝑁) → 𝑃 ∥ (𝑀 · 𝑁))) |
13 | 10, 12 | impbid 211 | 1 ⊢ ((𝑃 ∈ ℙ ∧ 𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑃 ∥ (𝑀 · 𝑁) ↔ (𝑃 ∥ 𝑀 ∨ 𝑃 ∥ 𝑁))) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 397 ∨ wo 846 ∧ w3a 1088 = wceq 1542 ∈ wcel 2107 class class class wbr 5147 (class class class)co 7404 1c1 11107 · cmul 11111 ℤcz 12554 ∥ cdvds 16193 gcd cgcd 16431 ℙcprime 16604 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7720 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 ax-pre-sup 11184 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3377 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-op 4634 df-uni 4908 df-iun 4998 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6297 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6492 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7360 df-ov 7407 df-oprab 7408 df-mpo 7409 df-om 7851 df-2nd 7971 df-frecs 8261 df-wrecs 8292 df-recs 8366 df-rdg 8405 df-1o 8461 df-2o 8462 df-er 8699 df-en 8936 df-dom 8937 df-sdom 8938 df-fin 8939 df-sup 9433 df-inf 9434 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11442 df-neg 11443 df-div 11868 df-nn 12209 df-2 12271 df-3 12272 df-n0 12469 df-z 12555 df-uz 12819 df-rp 12971 df-fl 13753 df-mod 13831 df-seq 13963 df-exp 14024 df-cj 15042 df-re 15043 df-im 15044 df-sqrt 15178 df-abs 15179 df-dvds 16194 df-gcd 16432 df-prm 16605 |
This theorem is referenced by: isprm6 16647 prmdvdsexp 16648 prmdvdssqOLD 16652 prmfac1 16654 pcpremul 16772 4sqlem11 16884 ablfac1eulem 19934 znfld 21100 wilthlem1 26552 mumul 26665 lgslem1 26780 lgsdir2 26813 lgsqrlem2 26830 2sqlem4 26904 2sqlem6 26906 2sqmod 26919 dvdszzq 31999 prmdvdsbc 32000 aks6d1c2p2 40895 etransclem44 44929 lighneallem3 46210 lighneallem4 46213 |
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