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Mirrors > Home > ILE Home > Th. List > 0z | GIF version |
Description: Zero is an integer. (Contributed by NM, 12-Jan-2002.) |
Ref | Expression |
---|---|
0z | ⊢ 0 ∈ ℤ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0re 7766 | . 2 ⊢ 0 ∈ ℝ | |
2 | eqid 2139 | . . 3 ⊢ 0 = 0 | |
3 | 2 | 3mix1i 1153 | . 2 ⊢ (0 = 0 ∨ 0 ∈ ℕ ∨ -0 ∈ ℕ) |
4 | elz 9056 | . 2 ⊢ (0 ∈ ℤ ↔ (0 ∈ ℝ ∧ (0 = 0 ∨ 0 ∈ ℕ ∨ -0 ∈ ℕ))) | |
5 | 1, 3, 4 | mpbir2an 926 | 1 ⊢ 0 ∈ ℤ |
Colors of variables: wff set class |
Syntax hints: ∨ w3o 961 = wceq 1331 ∈ wcel 1480 ℝcr 7619 0cc0 7620 -cneg 7934 ℕcn 8720 ℤcz 9054 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-1re 7714 ax-addrcl 7717 ax-rnegex 7729 |
This theorem depends on definitions: df-bi 116 df-3or 963 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-rab 2425 df-v 2688 df-un 3075 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-br 3930 df-iota 5088 df-fv 5131 df-ov 5777 df-neg 7936 df-z 9055 |
This theorem is referenced by: 0zd 9066 nn0ssz 9072 znegcl 9085 zgt0ge1 9112 nn0n0n1ge2b 9130 nn0lt10b 9131 nnm1ge0 9137 gtndiv 9146 msqznn 9151 zeo 9156 nn0ind 9165 fnn0ind 9167 nn0uz 9360 1eluzge0 9369 eqreznegel 9406 qreccl 9434 qdivcl 9435 irrmul 9439 fz10 9826 fz01en 9833 fzpreddisj 9851 fzshftral 9888 fznn0 9893 fz1ssfz0 9897 fz0tp 9901 elfz0ubfz0 9902 1fv 9916 lbfzo0 9958 elfzonlteqm1 9987 fzo01 9993 fzo0to2pr 9995 fzo0to3tp 9996 flqge0nn0 10066 divfl0 10069 btwnzge0 10073 modqmulnn 10115 zmodfz 10119 modqid 10122 zmodid2 10125 q0mod 10128 modqmuladdnn0 10141 frecfzennn 10199 qexpclz 10314 facdiv 10484 bcval 10495 bcnn 10503 bcm1k 10506 bcval5 10509 bcpasc 10512 4bc2eq6 10520 hashinfom 10524 rexfiuz 10761 qabsor 10847 nn0abscl 10857 nnabscl 10872 climz 11061 climaddc1 11098 climmulc2 11100 climsubc1 11101 climsubc2 11102 climlec2 11110 binomlem 11252 binom 11253 bcxmas 11258 arisum2 11268 explecnv 11274 ef0lem 11366 dvdsval2 11496 dvdsdc 11501 moddvds 11502 dvds0 11508 0dvds 11513 zdvdsdc 11514 dvdscmulr 11522 dvdsmulcr 11523 dvdslelemd 11541 dvdsabseq 11545 divconjdvds 11547 alzdvds 11552 fzo0dvdseq 11555 odd2np1lem 11569 gcdmndc 11637 gcdsupex 11646 gcdsupcl 11647 gcd0val 11649 gcddvds 11652 gcd0id 11667 gcdid0 11668 gcdid 11674 bezoutlema 11687 bezoutlemb 11688 bezoutlembi 11693 dfgcd3 11698 dfgcd2 11702 gcdmultiplez 11709 dvdssq 11719 algcvgblem 11730 lcmmndc 11743 lcm0val 11746 dvdslcm 11750 lcmeq0 11752 lcmgcd 11759 lcmdvds 11760 lcmid 11761 3lcm2e6woprm 11767 6lcm4e12 11768 cncongr2 11785 sqrt2irrap 11858 dfphi2 11896 phiprmpw 11898 crth 11900 phimullem 11901 hashgcdeq 11904 ennnfonelemjn 11915 ennnfonelem1 11920 |
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