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Mirrors > Home > MPE Home > Th. List > nnoddn2prmb | Structured version Visualization version GIF version |
Description: A number is a prime number not equal to 2 iff it is an odd prime number. Conversion theorem for two representations of odd primes. (Contributed by AV, 14-Jul-2021.) |
Ref | Expression |
---|---|
nnoddn2prmb | ⊢ (𝑁 ∈ (ℙ ∖ {2}) ↔ (𝑁 ∈ ℙ ∧ ¬ 2 ∥ 𝑁)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eldifi 4122 | . . 3 ⊢ (𝑁 ∈ (ℙ ∖ {2}) → 𝑁 ∈ ℙ) | |
2 | oddn2prm 16727 | . . 3 ⊢ (𝑁 ∈ (ℙ ∖ {2}) → ¬ 2 ∥ 𝑁) | |
3 | 1, 2 | jca 512 | . 2 ⊢ (𝑁 ∈ (ℙ ∖ {2}) → (𝑁 ∈ ℙ ∧ ¬ 2 ∥ 𝑁)) |
4 | simpl 483 | . . 3 ⊢ ((𝑁 ∈ ℙ ∧ ¬ 2 ∥ 𝑁) → 𝑁 ∈ ℙ) | |
5 | z2even 16295 | . . . . . . . 8 ⊢ 2 ∥ 2 | |
6 | breq2 5145 | . . . . . . . 8 ⊢ (𝑁 = 2 → (2 ∥ 𝑁 ↔ 2 ∥ 2)) | |
7 | 5, 6 | mpbiri 257 | . . . . . . 7 ⊢ (𝑁 = 2 → 2 ∥ 𝑁) |
8 | 7 | a1i 11 | . . . . . 6 ⊢ (𝑁 ∈ ℙ → (𝑁 = 2 → 2 ∥ 𝑁)) |
9 | 8 | con3dimp 409 | . . . . 5 ⊢ ((𝑁 ∈ ℙ ∧ ¬ 2 ∥ 𝑁) → ¬ 𝑁 = 2) |
10 | 9 | neqned 2946 | . . . 4 ⊢ ((𝑁 ∈ ℙ ∧ ¬ 2 ∥ 𝑁) → 𝑁 ≠ 2) |
11 | nelsn 4662 | . . . 4 ⊢ (𝑁 ≠ 2 → ¬ 𝑁 ∈ {2}) | |
12 | 10, 11 | syl 17 | . . 3 ⊢ ((𝑁 ∈ ℙ ∧ ¬ 2 ∥ 𝑁) → ¬ 𝑁 ∈ {2}) |
13 | 4, 12 | eldifd 3955 | . 2 ⊢ ((𝑁 ∈ ℙ ∧ ¬ 2 ∥ 𝑁) → 𝑁 ∈ (ℙ ∖ {2})) |
14 | 3, 13 | impbii 208 | 1 ⊢ (𝑁 ∈ (ℙ ∖ {2}) ↔ (𝑁 ∈ ℙ ∧ ¬ 2 ∥ 𝑁)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1541 ∈ wcel 2106 ≠ wne 2939 ∖ cdif 3941 {csn 4622 class class class wbr 5141 2c2 12249 ∥ cdvds 16179 ℙcprime 16590 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-sep 5292 ax-nul 5299 ax-pow 5356 ax-pr 5420 ax-un 7708 ax-cnex 11148 ax-resscn 11149 ax-1cn 11150 ax-icn 11151 ax-addcl 11152 ax-addrcl 11153 ax-mulcl 11154 ax-mulrcl 11155 ax-mulcom 11156 ax-addass 11157 ax-mulass 11158 ax-distr 11159 ax-i2m1 11160 ax-1ne0 11161 ax-1rid 11162 ax-rnegex 11163 ax-rrecex 11164 ax-cnre 11165 ax-pre-lttri 11166 ax-pre-lttrn 11167 ax-pre-ltadd 11168 ax-pre-mulgt0 11169 ax-pre-sup 11170 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-rmo 3375 df-reu 3376 df-rab 3432 df-v 3475 df-sbc 3774 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3963 df-nul 4319 df-if 4523 df-pw 4598 df-sn 4623 df-pr 4625 df-op 4629 df-uni 4902 df-iun 4992 df-br 5142 df-opab 5204 df-mpt 5225 df-tr 5259 df-id 5567 df-eprel 5573 df-po 5581 df-so 5582 df-fr 5624 df-we 5626 df-xp 5675 df-rel 5676 df-cnv 5677 df-co 5678 df-dm 5679 df-rn 5680 df-res 5681 df-ima 5682 df-pred 6289 df-ord 6356 df-on 6357 df-lim 6358 df-suc 6359 df-iota 6484 df-fun 6534 df-fn 6535 df-f 6536 df-f1 6537 df-fo 6538 df-f1o 6539 df-fv 6540 df-riota 7349 df-ov 7396 df-oprab 7397 df-mpo 7398 df-om 7839 df-2nd 7958 df-frecs 8248 df-wrecs 8279 df-recs 8353 df-rdg 8392 df-1o 8448 df-2o 8449 df-er 8686 df-en 8923 df-dom 8924 df-sdom 8925 df-fin 8926 df-sup 9419 df-pnf 11232 df-mnf 11233 df-xr 11234 df-ltxr 11235 df-le 11236 df-sub 11428 df-neg 11429 df-div 11854 df-nn 12195 df-2 12257 df-3 12258 df-n0 12455 df-z 12541 df-uz 12805 df-rp 12957 df-seq 13949 df-exp 14010 df-cj 15028 df-re 15029 df-im 15030 df-sqrt 15164 df-abs 15165 df-dvds 16180 df-prm 16591 |
This theorem is referenced by: 2lgs 26837 oddprm2 33496 |
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