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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 11868 | . . . 4 ⊢ 2 ∈ ℕ | |
2 | dec5nprm.1 | . . . 4 ⊢ 𝐴 ∈ ℕ | |
3 | 1, 2 | nnmulcli 11820 | . . 3 ⊢ (2 · 𝐴) ∈ ℕ |
4 | peano2nn 11807 | . . 3 ⊢ ((2 · 𝐴) ∈ ℕ → ((2 · 𝐴) + 1) ∈ ℕ) | |
5 | 3, 4 | ax-mp 5 | . 2 ⊢ ((2 · 𝐴) + 1) ∈ ℕ |
6 | 5nn 11881 | . 2 ⊢ 5 ∈ ℕ | |
7 | 1nn0 12071 | . . 3 ⊢ 1 ∈ ℕ0 | |
8 | 1lt2 11966 | . . 3 ⊢ 1 < 2 | |
9 | 1, 2, 7, 7, 8 | numlti 12295 | . 2 ⊢ 1 < ((2 · 𝐴) + 1) |
10 | 1lt5 11975 | . 2 ⊢ 1 < 5 | |
11 | 1 | nncni 11805 | . . . . . 6 ⊢ 2 ∈ ℂ |
12 | 2 | nncni 11805 | . . . . . 6 ⊢ 𝐴 ∈ ℂ |
13 | 5cn 11883 | . . . . . 6 ⊢ 5 ∈ ℂ | |
14 | 11, 12, 13 | mul32i 10993 | . . . . 5 ⊢ ((2 · 𝐴) · 5) = ((2 · 5) · 𝐴) |
15 | 5t2e10 12358 | . . . . . . 7 ⊢ (5 · 2) = ;10 | |
16 | 13, 11, 15 | mulcomli 10807 | . . . . . 6 ⊢ (2 · 5) = ;10 |
17 | 16 | oveq1i 7201 | . . . . 5 ⊢ ((2 · 5) · 𝐴) = (;10 · 𝐴) |
18 | 14, 17 | eqtri 2759 | . . . 4 ⊢ ((2 · 𝐴) · 5) = (;10 · 𝐴) |
19 | 13 | mulid2i 10803 | . . . 4 ⊢ (1 · 5) = 5 |
20 | 18, 19 | oveq12i 7203 | . . 3 ⊢ (((2 · 𝐴) · 5) + (1 · 5)) = ((;10 · 𝐴) + 5) |
21 | 3 | nncni 11805 | . . . 4 ⊢ (2 · 𝐴) ∈ ℂ |
22 | ax-1cn 10752 | . . . 4 ⊢ 1 ∈ ℂ | |
23 | 21, 22, 13 | adddiri 10811 | . . 3 ⊢ (((2 · 𝐴) + 1) · 5) = (((2 · 𝐴) · 5) + (1 · 5)) |
24 | dfdec10 12261 | . . 3 ⊢ ;𝐴5 = ((;10 · 𝐴) + 5) | |
25 | 20, 23, 24 | 3eqtr4i 2769 | . 2 ⊢ (((2 · 𝐴) + 1) · 5) = ;𝐴5 |
26 | 5, 6, 9, 10, 25 | nprmi 16209 | 1 ⊢ ¬ ;𝐴5 ∈ ℙ |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 ∈ wcel 2112 (class class class)co 7191 0cc0 10694 1c1 10695 + caddc 10697 · cmul 10699 ℕcn 11795 2c2 11850 5c5 11853 ;cdc 12258 ℙcprime 16191 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 ax-cnex 10750 ax-resscn 10751 ax-1cn 10752 ax-icn 10753 ax-addcl 10754 ax-addrcl 10755 ax-mulcl 10756 ax-mulrcl 10757 ax-mulcom 10758 ax-addass 10759 ax-mulass 10760 ax-distr 10761 ax-i2m1 10762 ax-1ne0 10763 ax-1rid 10764 ax-rnegex 10765 ax-rrecex 10766 ax-cnre 10767 ax-pre-lttri 10768 ax-pre-lttrn 10769 ax-pre-ltadd 10770 ax-pre-mulgt0 10771 ax-pre-sup 10772 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-nel 3037 df-ral 3056 df-rex 3057 df-reu 3058 df-rmo 3059 df-rab 3060 df-v 3400 df-sbc 3684 df-csb 3799 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-pss 3872 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-tp 4532 df-op 4534 df-uni 4806 df-iun 4892 df-br 5040 df-opab 5102 df-mpt 5121 df-tr 5147 df-id 5440 df-eprel 5445 df-po 5453 df-so 5454 df-fr 5494 df-we 5496 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-pred 6140 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6316 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-riota 7148 df-ov 7194 df-oprab 7195 df-mpo 7196 df-om 7623 df-2nd 7740 df-wrecs 8025 df-recs 8086 df-rdg 8124 df-1o 8180 df-2o 8181 df-er 8369 df-en 8605 df-dom 8606 df-sdom 8607 df-fin 8608 df-sup 9036 df-pnf 10834 df-mnf 10835 df-xr 10836 df-ltxr 10837 df-le 10838 df-sub 11029 df-neg 11030 df-div 11455 df-nn 11796 df-2 11858 df-3 11859 df-4 11860 df-5 11861 df-6 11862 df-7 11863 df-8 11864 df-9 11865 df-n0 12056 df-z 12142 df-dec 12259 df-uz 12404 df-rp 12552 df-seq 13540 df-exp 13601 df-cj 14627 df-re 14628 df-im 14629 df-sqrt 14763 df-abs 14764 df-dvds 15779 df-prm 16192 |
This theorem is referenced by: (None) |
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