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Mirrors > Home > MPE Home > Th. List > Mathboxes > oddprmALTV | Structured version Visualization version GIF version |
Description: A prime not equal to 2 is odd. (Contributed by Mario Carneiro, 4-Feb-2015.) (Revised by AV, 21-Jun-2020.) |
Ref | Expression |
---|---|
oddprmALTV | ⊢ (𝑁 ∈ (ℙ ∖ {2}) → 𝑁 ∈ Odd ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eldifsn 4680 | . 2 ⊢ (𝑁 ∈ (ℙ ∖ {2}) ↔ (𝑁 ∈ ℙ ∧ 𝑁 ≠ 2)) | |
2 | prmz 16009 | . . . 4 ⊢ (𝑁 ∈ ℙ → 𝑁 ∈ ℤ) | |
3 | 2 | adantr 484 | . . 3 ⊢ ((𝑁 ∈ ℙ ∧ 𝑁 ≠ 2) → 𝑁 ∈ ℤ) |
4 | necom 3040 | . . . . . . 7 ⊢ (𝑁 ≠ 2 ↔ 2 ≠ 𝑁) | |
5 | df-ne 2988 | . . . . . . 7 ⊢ (2 ≠ 𝑁 ↔ ¬ 2 = 𝑁) | |
6 | 4, 5 | sylbb 222 | . . . . . 6 ⊢ (𝑁 ≠ 2 → ¬ 2 = 𝑁) |
7 | 6 | adantl 485 | . . . . 5 ⊢ ((𝑁 ∈ ℙ ∧ 𝑁 ≠ 2) → ¬ 2 = 𝑁) |
8 | 1ne2 11833 | . . . . . . 7 ⊢ 1 ≠ 2 | |
9 | 8 | nesymi 3044 | . . . . . 6 ⊢ ¬ 2 = 1 |
10 | 9 | a1i 11 | . . . . 5 ⊢ ((𝑁 ∈ ℙ ∧ 𝑁 ≠ 2) → ¬ 2 = 1) |
11 | ioran 981 | . . . . 5 ⊢ (¬ (2 = 𝑁 ∨ 2 = 1) ↔ (¬ 2 = 𝑁 ∧ ¬ 2 = 1)) | |
12 | 7, 10, 11 | sylanbrc 586 | . . . 4 ⊢ ((𝑁 ∈ ℙ ∧ 𝑁 ≠ 2) → ¬ (2 = 𝑁 ∨ 2 = 1)) |
13 | 2nn 11698 | . . . . . 6 ⊢ 2 ∈ ℕ | |
14 | 13 | a1i 11 | . . . . 5 ⊢ (𝑁 ≠ 2 → 2 ∈ ℕ) |
15 | dvdsprime 16021 | . . . . 5 ⊢ ((𝑁 ∈ ℙ ∧ 2 ∈ ℕ) → (2 ∥ 𝑁 ↔ (2 = 𝑁 ∨ 2 = 1))) | |
16 | 14, 15 | sylan2 595 | . . . 4 ⊢ ((𝑁 ∈ ℙ ∧ 𝑁 ≠ 2) → (2 ∥ 𝑁 ↔ (2 = 𝑁 ∨ 2 = 1))) |
17 | 12, 16 | mtbird 328 | . . 3 ⊢ ((𝑁 ∈ ℙ ∧ 𝑁 ≠ 2) → ¬ 2 ∥ 𝑁) |
18 | isodd3 44170 | . . 3 ⊢ (𝑁 ∈ Odd ↔ (𝑁 ∈ ℤ ∧ ¬ 2 ∥ 𝑁)) | |
19 | 3, 17, 18 | sylanbrc 586 | . 2 ⊢ ((𝑁 ∈ ℙ ∧ 𝑁 ≠ 2) → 𝑁 ∈ Odd ) |
20 | 1, 19 | sylbi 220 | 1 ⊢ (𝑁 ∈ (ℙ ∖ {2}) → 𝑁 ∈ Odd ) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 399 ∨ wo 844 = wceq 1538 ∈ wcel 2111 ≠ wne 2987 ∖ cdif 3878 {csn 4525 class class class wbr 5030 1c1 10527 ℕcn 11625 2c2 11680 ℤcz 11969 ∥ cdvds 15599 ℙcprime 16005 Odd codd 44143 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 ax-cnex 10582 ax-resscn 10583 ax-1cn 10584 ax-icn 10585 ax-addcl 10586 ax-addrcl 10587 ax-mulcl 10588 ax-mulrcl 10589 ax-mulcom 10590 ax-addass 10591 ax-mulass 10592 ax-distr 10593 ax-i2m1 10594 ax-1ne0 10595 ax-1rid 10596 ax-rnegex 10597 ax-rrecex 10598 ax-cnre 10599 ax-pre-lttri 10600 ax-pre-lttrn 10601 ax-pre-ltadd 10602 ax-pre-mulgt0 10603 ax-pre-sup 10604 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-nel 3092 df-ral 3111 df-rex 3112 df-reu 3113 df-rmo 3114 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-pss 3900 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-tp 4530 df-op 4532 df-uni 4801 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-tr 5137 df-id 5425 df-eprel 5430 df-po 5438 df-so 5439 df-fr 5478 df-we 5480 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-pred 6116 df-ord 6162 df-on 6163 df-lim 6164 df-suc 6165 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 df-fv 6332 df-riota 7093 df-ov 7138 df-oprab 7139 df-mpo 7140 df-om 7561 df-2nd 7672 df-wrecs 7930 df-recs 7991 df-rdg 8029 df-1o 8085 df-2o 8086 df-er 8272 df-en 8493 df-dom 8494 df-sdom 8495 df-fin 8496 df-sup 8890 df-pnf 10666 df-mnf 10667 df-xr 10668 df-ltxr 10669 df-le 10670 df-sub 10861 df-neg 10862 df-div 11287 df-nn 11626 df-2 11688 df-3 11689 df-n0 11886 df-z 11970 df-uz 12232 df-rp 12378 df-seq 13365 df-exp 13426 df-cj 14450 df-re 14451 df-im 14452 df-sqrt 14586 df-abs 14587 df-dvds 15600 df-prm 16006 df-odd 44145 |
This theorem is referenced by: evenprm2 44232 odd2prm2 44236 even3prm2 44237 bgoldbtbndlem2 44324 bgoldbtbndlem3 44325 bgoldbtbndlem4 44326 bgoldbtbnd 44327 |
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