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Mirrors > Home > MPE Home > Th. List > fvprmselelfz | Structured version Visualization version GIF version |
Description: The value of the prime selection function is in a finite sequence of integers if the argument is in this finite sequence of integers. (Contributed by AV, 19-Aug-2020.) |
Ref | Expression |
---|---|
fvprmselelfz.f | ⊢ 𝐹 = (𝑚 ∈ ℕ ↦ if(𝑚 ∈ ℙ, 𝑚, 1)) |
Ref | Expression |
---|---|
fvprmselelfz | ⊢ ((𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁)) → (𝐹‘𝑋) ∈ (1...𝑁)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fvprmselelfz.f | . . . 4 ⊢ 𝐹 = (𝑚 ∈ ℕ ↦ if(𝑚 ∈ ℙ, 𝑚, 1)) | |
2 | eleq1 2827 | . . . . . 6 ⊢ (𝑚 = 𝑋 → (𝑚 ∈ ℙ ↔ 𝑋 ∈ ℙ)) | |
3 | id 22 | . . . . . 6 ⊢ (𝑚 = 𝑋 → 𝑚 = 𝑋) | |
4 | 2, 3 | ifbieq1d 4488 | . . . . 5 ⊢ (𝑚 = 𝑋 → if(𝑚 ∈ ℙ, 𝑚, 1) = if(𝑋 ∈ ℙ, 𝑋, 1)) |
5 | iftrue 4470 | . . . . . 6 ⊢ (𝑋 ∈ ℙ → if(𝑋 ∈ ℙ, 𝑋, 1) = 𝑋) | |
6 | 5 | adantr 480 | . . . . 5 ⊢ ((𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) → if(𝑋 ∈ ℙ, 𝑋, 1) = 𝑋) |
7 | 4, 6 | sylan9eqr 2801 | . . . 4 ⊢ (((𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) ∧ 𝑚 = 𝑋) → if(𝑚 ∈ ℙ, 𝑚, 1) = 𝑋) |
8 | elfznn 13267 | . . . . . 6 ⊢ (𝑋 ∈ (1...𝑁) → 𝑋 ∈ ℕ) | |
9 | 8 | adantl 481 | . . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁)) → 𝑋 ∈ ℕ) |
10 | 9 | adantl 481 | . . . 4 ⊢ ((𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) → 𝑋 ∈ ℕ) |
11 | 1, 7, 10, 10 | fvmptd2 6877 | . . 3 ⊢ ((𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) → (𝐹‘𝑋) = 𝑋) |
12 | simprr 769 | . . 3 ⊢ ((𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) → 𝑋 ∈ (1...𝑁)) | |
13 | 11, 12 | eqeltrd 2840 | . 2 ⊢ ((𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) → (𝐹‘𝑋) ∈ (1...𝑁)) |
14 | iffalse 4473 | . . . . . 6 ⊢ (¬ 𝑋 ∈ ℙ → if(𝑋 ∈ ℙ, 𝑋, 1) = 1) | |
15 | 14 | adantr 480 | . . . . 5 ⊢ ((¬ 𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) → if(𝑋 ∈ ℙ, 𝑋, 1) = 1) |
16 | 4, 15 | sylan9eqr 2801 | . . . 4 ⊢ (((¬ 𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) ∧ 𝑚 = 𝑋) → if(𝑚 ∈ ℙ, 𝑚, 1) = 1) |
17 | 9 | adantl 481 | . . . 4 ⊢ ((¬ 𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) → 𝑋 ∈ ℕ) |
18 | 1nn 11967 | . . . . 5 ⊢ 1 ∈ ℕ | |
19 | 18 | a1i 11 | . . . 4 ⊢ ((¬ 𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) → 1 ∈ ℕ) |
20 | 1, 16, 17, 19 | fvmptd2 6877 | . . 3 ⊢ ((¬ 𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) → (𝐹‘𝑋) = 1) |
21 | elnnuz 12604 | . . . . . 6 ⊢ (𝑁 ∈ ℕ ↔ 𝑁 ∈ (ℤ≥‘1)) | |
22 | eluzfz1 13245 | . . . . . 6 ⊢ (𝑁 ∈ (ℤ≥‘1) → 1 ∈ (1...𝑁)) | |
23 | 21, 22 | sylbi 216 | . . . . 5 ⊢ (𝑁 ∈ ℕ → 1 ∈ (1...𝑁)) |
24 | 23 | adantr 480 | . . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁)) → 1 ∈ (1...𝑁)) |
25 | 24 | adantl 481 | . . 3 ⊢ ((¬ 𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) → 1 ∈ (1...𝑁)) |
26 | 20, 25 | eqeltrd 2840 | . 2 ⊢ ((¬ 𝑋 ∈ ℙ ∧ (𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁))) → (𝐹‘𝑋) ∈ (1...𝑁)) |
27 | 13, 26 | pm2.61ian 808 | 1 ⊢ ((𝑁 ∈ ℕ ∧ 𝑋 ∈ (1...𝑁)) → (𝐹‘𝑋) ∈ (1...𝑁)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2109 ifcif 4464 ↦ cmpt 5161 ‘cfv 6430 (class class class)co 7268 1c1 10856 ℕcn 11956 ℤ≥cuz 12564 ...cfz 13221 ℙcprime 16357 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 ax-cnex 10911 ax-resscn 10912 ax-1cn 10913 ax-icn 10914 ax-addcl 10915 ax-addrcl 10916 ax-mulcl 10917 ax-mulrcl 10918 ax-mulcom 10919 ax-addass 10920 ax-mulass 10921 ax-distr 10922 ax-i2m1 10923 ax-1ne0 10924 ax-1rid 10925 ax-rnegex 10926 ax-rrecex 10927 ax-cnre 10928 ax-pre-lttri 10929 ax-pre-lttrn 10930 ax-pre-ltadd 10931 ax-pre-mulgt0 10932 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-nel 3051 df-ral 3070 df-rex 3071 df-reu 3072 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-pss 3910 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4845 df-iun 4931 df-br 5079 df-opab 5141 df-mpt 5162 df-tr 5196 df-id 5488 df-eprel 5494 df-po 5502 df-so 5503 df-fr 5543 df-we 5545 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-pred 6199 df-ord 6266 df-on 6267 df-lim 6268 df-suc 6269 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-om 7701 df-1st 7817 df-2nd 7818 df-frecs 8081 df-wrecs 8112 df-recs 8186 df-rdg 8225 df-er 8472 df-en 8708 df-dom 8709 df-sdom 8710 df-pnf 10995 df-mnf 10996 df-xr 10997 df-ltxr 10998 df-le 10999 df-sub 11190 df-neg 11191 df-nn 11957 df-z 12303 df-uz 12565 df-fz 13222 |
This theorem is referenced by: (None) |
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