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| Mirrors > Home > MPE Home > Th. List > Mathboxes > fpprmod | Structured version Visualization version GIF version | ||
| Description: The set of Fermat pseudoprimes to the base 𝑁, expressed by a modulo operation instead of the divisibility relation. (Contributed by AV, 30-May-2023.) |
| Ref | Expression |
|---|---|
| fpprmod | ⊢ (𝑁 ∈ ℕ → ( FPPr ‘𝑁) = {𝑥 ∈ (ℤ≥‘4) ∣ (𝑥 ∉ ℙ ∧ ((𝑁↑(𝑥 − 1)) mod 𝑥) = 1)}) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fppr 48918 | . 2 ⊢ (𝑁 ∈ ℕ → ( FPPr ‘𝑁) = {𝑥 ∈ (ℤ≥‘4) ∣ (𝑥 ∉ ℙ ∧ 𝑥 ∥ ((𝑁↑(𝑥 − 1)) − 1))}) | |
| 2 | uzuzle24 13016 | . . . . . 6 ⊢ (𝑥 ∈ (ℤ≥‘4) → 𝑥 ∈ (ℤ≥‘2)) | |
| 3 | nnz 12718 | . . . . . . 7 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℤ) | |
| 4 | eluz4nn 13021 | . . . . . . . 8 ⊢ (𝑥 ∈ (ℤ≥‘4) → 𝑥 ∈ ℕ) | |
| 5 | nnm1nn0 12651 | . . . . . . . 8 ⊢ (𝑥 ∈ ℕ → (𝑥 − 1) ∈ ℕ0) | |
| 6 | 4, 5 | syl 18 | . . . . . . 7 ⊢ (𝑥 ∈ (ℤ≥‘4) → (𝑥 − 1) ∈ ℕ0) |
| 7 | zexpcl 14223 | . . . . . . 7 ⊢ ((𝑁 ∈ ℤ ∧ (𝑥 − 1) ∈ ℕ0) → (𝑁↑(𝑥 − 1)) ∈ ℤ) | |
| 8 | 3, 6, 7 | syl2an 608 | . . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (ℤ≥‘4)) → (𝑁↑(𝑥 − 1)) ∈ ℤ) |
| 9 | modm1div 16440 | . . . . . 6 ⊢ ((𝑥 ∈ (ℤ≥‘2) ∧ (𝑁↑(𝑥 − 1)) ∈ ℤ) → (((𝑁↑(𝑥 − 1)) mod 𝑥) = 1 ↔ 𝑥 ∥ ((𝑁↑(𝑥 − 1)) − 1))) | |
| 10 | 2, 8, 9 | syl2an2 699 | . . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (ℤ≥‘4)) → (((𝑁↑(𝑥 − 1)) mod 𝑥) = 1 ↔ 𝑥 ∥ ((𝑁↑(𝑥 − 1)) − 1))) |
| 11 | 10 | bicomd 226 | . . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (ℤ≥‘4)) → (𝑥 ∥ ((𝑁↑(𝑥 − 1)) − 1) ↔ ((𝑁↑(𝑥 − 1)) mod 𝑥) = 1)) |
| 12 | 11 | anbi2d 642 | . . 3 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ (ℤ≥‘4)) → ((𝑥 ∉ ℙ ∧ 𝑥 ∥ ((𝑁↑(𝑥 − 1)) − 1)) ↔ (𝑥 ∉ ℙ ∧ ((𝑁↑(𝑥 − 1)) mod 𝑥) = 1))) |
| 13 | 12 | rabbidva 3418 | . 2 ⊢ (𝑁 ∈ ℕ → {𝑥 ∈ (ℤ≥‘4) ∣ (𝑥 ∉ ℙ ∧ 𝑥 ∥ ((𝑁↑(𝑥 − 1)) − 1))} = {𝑥 ∈ (ℤ≥‘4) ∣ (𝑥 ∉ ℙ ∧ ((𝑁↑(𝑥 − 1)) mod 𝑥) = 1)}) |
| 14 | 1, 13 | eqtrd 2795 | 1 ⊢ (𝑁 ∈ ℕ → ( FPPr ‘𝑁) = {𝑥 ∈ (ℤ≥‘4) ∣ (𝑥 ∉ ℙ ∧ ((𝑁↑(𝑥 − 1)) mod 𝑥) = 1)}) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1569 ∈ wcel 2144 ∉ wnel 3061 {crab 3412 class class class wbr 5102 ‘cfv 6539 (class class class)co 7421 1c1 11205 − cmin 11545 ℕcn 12339 2c2 12401 4c4 12403 ℕ0cn0 12610 ℤcz 12697 ℤ≥cuz 12969 mod cmo 14013 ↑cexp 14208 ∥ cdvds 16428 ℙcprime 16852 FPPr cfppr 48916 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7752 ax-cnex 11260 ax-resscn 11261 ax-1cn 11262 ax-icn 11263 ax-addcl 11264 ax-addrcl 11265 ax-mulcl 11266 ax-mulrcl 11267 ax-mulcom 11268 ax-addass 11269 ax-mulass 11270 ax-distr 11271 ax-i2m1 11272 ax-1ne0 11273 ax-1rid 11274 ax-rnegex 11275 ax-rrecex 11276 ax-cnre 11277 ax-pre-lttri 11278 ax-pre-lttrn 11279 ax-pre-ltadd 11280 ax-pre-mulgt0 11281 ax-pre-sup 11282 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-riota 7378 df-ov 7424 df-oprab 7425 df-mpo 7426 df-om 7879 df-2nd 8003 df-frecs 8303 df-wrecs 8334 df-recs 8383 df-rdg 8422 df-er 8721 df-en 8978 df-dom 8979 df-sdom 8980 df-sup 9438 df-inf 9439 df-pnf 11349 df-mnf 11350 df-xr 11351 df-ltxr 11352 df-le 11353 df-sub 11547 df-neg 11548 df-div 11978 df-nn 12340 df-2 12409 df-3 12410 df-4 12411 df-n0 12611 df-z 12698 df-uz 12970 df-rp 13125 df-fl 13936 df-mod 14014 df-seq 14149 df-exp 14209 df-dvds 16429 df-fppr 48917 |
| This theorem is used by: fpprel 48920 |
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