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Mirrors > Home > MPE Home > Th. List > 2prm | Structured version Visualization version GIF version |
Description: 2 is a prime number. (Contributed by Paul Chapman, 22-Jun-2011.) (Proof shortened by Fan Zheng, 16-Jun-2016.) |
Ref | Expression |
---|---|
2prm | ⊢ 2 ∈ ℙ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2z 12015 | . . 3 ⊢ 2 ∈ ℤ | |
2 | 1lt2 11809 | . . 3 ⊢ 1 < 2 | |
3 | eluz2b1 12320 | . . 3 ⊢ (2 ∈ (ℤ≥‘2) ↔ (2 ∈ ℤ ∧ 1 < 2)) | |
4 | 1, 2, 3 | mpbir2an 709 | . 2 ⊢ 2 ∈ (ℤ≥‘2) |
5 | ral0 4456 | . . 3 ⊢ ∀𝑧 ∈ ∅ ¬ 𝑧 ∥ 2 | |
6 | fzssuz 12949 | . . . . . 6 ⊢ (2...(2 − 1)) ⊆ (ℤ≥‘2) | |
7 | df-ss 3952 | . . . . . 6 ⊢ ((2...(2 − 1)) ⊆ (ℤ≥‘2) ↔ ((2...(2 − 1)) ∩ (ℤ≥‘2)) = (2...(2 − 1))) | |
8 | 6, 7 | mpbi 232 | . . . . 5 ⊢ ((2...(2 − 1)) ∩ (ℤ≥‘2)) = (2...(2 − 1)) |
9 | uzdisj 12981 | . . . . 5 ⊢ ((2...(2 − 1)) ∩ (ℤ≥‘2)) = ∅ | |
10 | 8, 9 | eqtr3i 2846 | . . . 4 ⊢ (2...(2 − 1)) = ∅ |
11 | 10 | raleqi 3413 | . . 3 ⊢ (∀𝑧 ∈ (2...(2 − 1)) ¬ 𝑧 ∥ 2 ↔ ∀𝑧 ∈ ∅ ¬ 𝑧 ∥ 2) |
12 | 5, 11 | mpbir 233 | . 2 ⊢ ∀𝑧 ∈ (2...(2 − 1)) ¬ 𝑧 ∥ 2 |
13 | isprm3 16027 | . 2 ⊢ (2 ∈ ℙ ↔ (2 ∈ (ℤ≥‘2) ∧ ∀𝑧 ∈ (2...(2 − 1)) ¬ 𝑧 ∥ 2)) | |
14 | 4, 12, 13 | mpbir2an 709 | 1 ⊢ 2 ∈ ℙ |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 = wceq 1537 ∈ wcel 2114 ∀wral 3138 ∩ cin 3935 ⊆ wss 3936 ∅c0 4291 class class class wbr 5066 ‘cfv 6355 (class class class)co 7156 1c1 10538 < clt 10675 − cmin 10870 2c2 11693 ℤcz 11982 ℤ≥cuz 12244 ...cfz 12893 ∥ cdvds 15607 ℙcprime 16015 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-mulcom 10601 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 ax-pre-mulgt0 10614 ax-pre-sup 10615 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 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 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-pred 6148 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-om 7581 df-1st 7689 df-2nd 7690 df-wrecs 7947 df-recs 8008 df-rdg 8046 df-1o 8102 df-2o 8103 df-er 8289 df-en 8510 df-dom 8511 df-sdom 8512 df-fin 8513 df-sup 8906 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 df-sub 10872 df-neg 10873 df-div 11298 df-nn 11639 df-2 11701 df-3 11702 df-n0 11899 df-z 11983 df-uz 12245 df-rp 12391 df-fz 12894 df-seq 13371 df-exp 13431 df-cj 14458 df-re 14459 df-im 14460 df-sqrt 14594 df-abs 14595 df-dvds 15608 df-prm 16016 |
This theorem is referenced by: 2mulprm 16037 ge2nprmge4 16045 isoddgcd1 16071 3lcm2e6 16072 pythagtriplem4 16156 pc2dvds 16215 oddprmdvds 16239 prmo2 16376 prmgaplem3 16389 lt6abl 19015 2logb9irr 25373 2logb3irr 25375 ppi2 25747 cht2 25749 1sgm2ppw 25776 perfectlem1 25805 perfectlem2 25806 perfect 25807 bpos1 25859 lgs2 25890 lgsdir2 25906 lgseisenlem2 25952 lgsquad2lem1 25960 lgsquad2lem2 25961 lgsquad3 25963 m1lgs 25964 2lgs 25983 2lgsoddprm 25992 dchrisum0flb 26086 numclwwlk5lem 28166 hgt750lemd 31919 fltne 39292 goldbachthlem2 43728 odz2prm2pw 43745 fmtnoprmfac1 43747 fmtnoprmfac2 43749 lighneallem2 43791 lighneallem3 43792 lighneallem4 43795 proththd 43799 isodd7 43850 gcd2odd1 43853 perfectALTV 43908 7gbow 43957 sbgoldbalt 43966 sgoldbeven3prm 43968 sbgoldbo 43972 nnsum3primes4 43973 nnsum3primesle9 43979 zlmodzxznm 44572 |
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