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Mirrors > Home > MPE Home > Th. List > dec5nprm | Structured version Visualization version GIF version |
Description: Divisibility by five is obvious in base 10. (Contributed by Mario Carneiro, 19-Apr-2015.) |
Ref | Expression |
---|---|
dec5nprm.1 | ⊢ 𝐴 ∈ ℕ |
Ref | Expression |
---|---|
dec5nprm | ⊢ ¬ ;𝐴5 ∈ ℙ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2nn 11709 | . . . 4 ⊢ 2 ∈ ℕ | |
2 | dec5nprm.1 | . . . 4 ⊢ 𝐴 ∈ ℕ | |
3 | 1, 2 | nnmulcli 11661 | . . 3 ⊢ (2 · 𝐴) ∈ ℕ |
4 | peano2nn 11649 | . . 3 ⊢ ((2 · 𝐴) ∈ ℕ → ((2 · 𝐴) + 1) ∈ ℕ) | |
5 | 3, 4 | ax-mp 5 | . 2 ⊢ ((2 · 𝐴) + 1) ∈ ℕ |
6 | 5nn 11722 | . 2 ⊢ 5 ∈ ℕ | |
7 | 1nn0 11912 | . . 3 ⊢ 1 ∈ ℕ0 | |
8 | 1lt2 11807 | . . 3 ⊢ 1 < 2 | |
9 | 1, 2, 7, 7, 8 | numlti 12134 | . 2 ⊢ 1 < ((2 · 𝐴) + 1) |
10 | 1lt5 11816 | . 2 ⊢ 1 < 5 | |
11 | 1 | nncni 11647 | . . . . . 6 ⊢ 2 ∈ ℂ |
12 | 2 | nncni 11647 | . . . . . 6 ⊢ 𝐴 ∈ ℂ |
13 | 5cn 11724 | . . . . . 6 ⊢ 5 ∈ ℂ | |
14 | 11, 12, 13 | mul32i 10835 | . . . . 5 ⊢ ((2 · 𝐴) · 5) = ((2 · 5) · 𝐴) |
15 | 5t2e10 12197 | . . . . . . 7 ⊢ (5 · 2) = ;10 | |
16 | 13, 11, 15 | mulcomli 10649 | . . . . . 6 ⊢ (2 · 5) = ;10 |
17 | 16 | oveq1i 7165 | . . . . 5 ⊢ ((2 · 5) · 𝐴) = (;10 · 𝐴) |
18 | 14, 17 | eqtri 2844 | . . . 4 ⊢ ((2 · 𝐴) · 5) = (;10 · 𝐴) |
19 | 13 | mulid2i 10645 | . . . 4 ⊢ (1 · 5) = 5 |
20 | 18, 19 | oveq12i 7167 | . . 3 ⊢ (((2 · 𝐴) · 5) + (1 · 5)) = ((;10 · 𝐴) + 5) |
21 | 3 | nncni 11647 | . . . 4 ⊢ (2 · 𝐴) ∈ ℂ |
22 | ax-1cn 10594 | . . . 4 ⊢ 1 ∈ ℂ | |
23 | 21, 22, 13 | adddiri 10653 | . . 3 ⊢ (((2 · 𝐴) + 1) · 5) = (((2 · 𝐴) · 5) + (1 · 5)) |
24 | dfdec10 12100 | . . 3 ⊢ ;𝐴5 = ((;10 · 𝐴) + 5) | |
25 | 20, 23, 24 | 3eqtr4i 2854 | . 2 ⊢ (((2 · 𝐴) + 1) · 5) = ;𝐴5 |
26 | 5, 6, 9, 10, 25 | nprmi 16032 | 1 ⊢ ¬ ;𝐴5 ∈ ℙ |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 ∈ wcel 2110 (class class class)co 7155 0cc0 10536 1c1 10537 + caddc 10539 · cmul 10541 ℕcn 11637 2c2 11691 5c5 11694 ;cdc 12097 ℙcprime 16014 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5202 ax-nul 5209 ax-pow 5265 ax-pr 5329 ax-un 7460 ax-cnex 10592 ax-resscn 10593 ax-1cn 10594 ax-icn 10595 ax-addcl 10596 ax-addrcl 10597 ax-mulcl 10598 ax-mulrcl 10599 ax-mulcom 10600 ax-addass 10601 ax-mulass 10602 ax-distr 10603 ax-i2m1 10604 ax-1ne0 10605 ax-1rid 10606 ax-rnegex 10607 ax-rrecex 10608 ax-cnre 10609 ax-pre-lttri 10610 ax-pre-lttrn 10611 ax-pre-ltadd 10612 ax-pre-mulgt0 10613 ax-pre-sup 10614 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-pss 3953 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4838 df-iun 4920 df-br 5066 df-opab 5128 df-mpt 5146 df-tr 5172 df-id 5459 df-eprel 5464 df-po 5473 df-so 5474 df-fr 5513 df-we 5515 df-xp 5560 df-rel 5561 df-cnv 5562 df-co 5563 df-dm 5564 df-rn 5565 df-res 5566 df-ima 5567 df-pred 6147 df-ord 6193 df-on 6194 df-lim 6195 df-suc 6196 df-iota 6313 df-fun 6356 df-fn 6357 df-f 6358 df-f1 6359 df-fo 6360 df-f1o 6361 df-fv 6362 df-riota 7113 df-ov 7158 df-oprab 7159 df-mpo 7160 df-om 7580 df-2nd 7689 df-wrecs 7946 df-recs 8007 df-rdg 8045 df-1o 8101 df-2o 8102 df-er 8288 df-en 8509 df-dom 8510 df-sdom 8511 df-fin 8512 df-sup 8905 df-pnf 10676 df-mnf 10677 df-xr 10678 df-ltxr 10679 df-le 10680 df-sub 10871 df-neg 10872 df-div 11297 df-nn 11638 df-2 11699 df-3 11700 df-4 11701 df-5 11702 df-6 11703 df-7 11704 df-8 11705 df-9 11706 df-n0 11897 df-z 11981 df-dec 12098 df-uz 12243 df-rp 12389 df-seq 13369 df-exp 13429 df-cj 14457 df-re 14458 df-im 14459 df-sqrt 14593 df-abs 14594 df-dvds 15607 df-prm 16015 |
This theorem is referenced by: (None) |
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