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Mirrors > Home > MPE Home > Th. List > prmo2 | Structured version Visualization version GIF version |
Description: The primorial of 2. (Contributed by AV, 28-Aug-2020.) |
Ref | Expression |
---|---|
prmo2 | ⊢ (#p‘2) = 2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2nn 12307 | . . 3 ⊢ 2 ∈ ℕ | |
2 | prmonn2 16999 | . . 3 ⊢ (2 ∈ ℕ → (#p‘2) = if(2 ∈ ℙ, ((#p‘(2 − 1)) · 2), (#p‘(2 − 1)))) | |
3 | 1, 2 | ax-mp 5 | . 2 ⊢ (#p‘2) = if(2 ∈ ℙ, ((#p‘(2 − 1)) · 2), (#p‘(2 − 1))) |
4 | 2prm 16654 | . . . 4 ⊢ 2 ∈ ℙ | |
5 | 4 | iftruei 4531 | . . 3 ⊢ if(2 ∈ ℙ, ((#p‘(2 − 1)) · 2), (#p‘(2 − 1))) = ((#p‘(2 − 1)) · 2) |
6 | 2m1e1 12360 | . . . . . . 7 ⊢ (2 − 1) = 1 | |
7 | 6 | fveq2i 6894 | . . . . . 6 ⊢ (#p‘(2 − 1)) = (#p‘1) |
8 | prmo1 16997 | . . . . . 6 ⊢ (#p‘1) = 1 | |
9 | 7, 8 | eqtri 2755 | . . . . 5 ⊢ (#p‘(2 − 1)) = 1 |
10 | 9 | oveq1i 7424 | . . . 4 ⊢ ((#p‘(2 − 1)) · 2) = (1 · 2) |
11 | 2cn 12309 | . . . . 5 ⊢ 2 ∈ ℂ | |
12 | 11 | mullidi 11241 | . . . 4 ⊢ (1 · 2) = 2 |
13 | 10, 12 | eqtri 2755 | . . 3 ⊢ ((#p‘(2 − 1)) · 2) = 2 |
14 | 5, 13 | eqtri 2755 | . 2 ⊢ if(2 ∈ ℙ, ((#p‘(2 − 1)) · 2), (#p‘(2 − 1))) = 2 |
15 | 3, 14 | eqtri 2755 | 1 ⊢ (#p‘2) = 2 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1534 ∈ wcel 2099 ifcif 4524 ‘cfv 6542 (class class class)co 7414 1c1 11131 · cmul 11135 − cmin 11466 ℕcn 12234 2c2 12289 ℙcprime 16633 #pcprmo 16991 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2164 ax-ext 2698 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7734 ax-inf2 9656 ax-cnex 11186 ax-resscn 11187 ax-1cn 11188 ax-icn 11189 ax-addcl 11190 ax-addrcl 11191 ax-mulcl 11192 ax-mulrcl 11193 ax-mulcom 11194 ax-addass 11195 ax-mulass 11196 ax-distr 11197 ax-i2m1 11198 ax-1ne0 11199 ax-1rid 11200 ax-rnegex 11201 ax-rrecex 11202 ax-cnre 11203 ax-pre-lttri 11204 ax-pre-lttrn 11205 ax-pre-ltadd 11206 ax-pre-mulgt0 11207 ax-pre-sup 11208 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2529 df-eu 2558 df-clab 2705 df-cleq 2719 df-clel 2805 df-nfc 2880 df-ne 2936 df-nel 3042 df-ral 3057 df-rex 3066 df-rmo 3371 df-reu 3372 df-rab 3428 df-v 3471 df-sbc 3775 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3963 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-op 4631 df-uni 4904 df-int 4945 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-se 5628 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-isom 6551 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7865 df-1st 7987 df-2nd 7988 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-1o 8480 df-2o 8481 df-er 8718 df-en 8956 df-dom 8957 df-sdom 8958 df-fin 8959 df-sup 9457 df-oi 9525 df-card 9954 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11468 df-neg 11469 df-div 11894 df-nn 12235 df-2 12297 df-3 12298 df-n0 12495 df-z 12581 df-uz 12845 df-rp 12999 df-fz 13509 df-fzo 13652 df-seq 13991 df-exp 14051 df-hash 14314 df-cj 15070 df-re 15071 df-im 15072 df-sqrt 15206 df-abs 15207 df-clim 15456 df-prod 15874 df-dvds 16223 df-prm 16634 df-prmo 16992 |
This theorem is referenced by: prmo3 17001 |
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