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| Mirrors > Home > MPE Home > Th. List > 4z | Structured version Visualization version GIF version | ||
| Description: 4 is an integer. (Contributed by BJ, 26-Mar-2020.) |
| Ref | Expression |
|---|---|
| 4z | ⊢ 4 ∈ ℤ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 4nn 12426 | . 2 ⊢ 4 ∈ ℕ | |
| 2 | 1 | nnzi 12720 | 1 ⊢ 4 ∈ ℤ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2144 4c4 12399 ℤcz 12693 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5390 ax-un 7751 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-i2m1 11268 ax-1ne0 11269 ax-rrecex 11272 ax-cnre 11273 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-dif 3899 df-un 3901 df-in 3903 df-ss 3914 df-pss 4034 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-ov 7423 df-om 7878 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-neg 11544 df-nn 12336 df-2 12405 df-3 12406 df-4 12407 df-z 12694 |
| This theorem is used by: fz0to4untppr 13764 fzo0to42pr 13888 fzo1to4tp 13889 iexpcyc 14351 sqoddm1div8 14387 4bc2eq6 14473 ef01bndlem 16352 sin01bnd 16353 cos01bnd 16354 4dvdseven 16543 flodddiv4lt 16587 6gcd4e2 16711 6lcm4e12 16791 lcmf2a3a4e12 16822 ge2nprmge4 16877 prm23lt5 16992 1259lem3 17311 ppiub 27531 bclbnd 27607 bposlem6 27616 bposlem9 27619 lgsdir2lem2 27653 m1lgs 27715 2lgsoddprmlem2 27736 chebbnd1lem2 27797 chebbnd1lem3 27798 pntlema 27923 pntlemb 27924 flt4lem7 27989 ex-ind-dvds 31062 hgt750lemd 35277 3lexlogpow5ineq5 43111 aks4d1p1p7 43125 aks4d1p1p5 43126 aks4d1p1 43127 inductionexd 45155 wallispi2lem1 47081 goldratmolem2 47933 fmtno4prmfac 48657 31prm 48682 mod42tp1mod8 48687 nprmdvdsfacm1 48709 8even 48811 341fppr2 48832 4fppr1 48833 9fppr8 48835 fpprel2 48839 sbgoldbo 48885 nnsum3primesle9 48892 nnsum4primeseven 48898 nnsum4primesevenALTV 48899 tgblthelfgott 48913 gpg5nbgr3star 49179 gpgprismgr4cycllem9 49201 zlmodzxzequa 49608 zlmodzxznm 49609 zlmodzxzequap 49611 zlmodzxzldeplem3 49614 zlmodzxzldep 49616 ldepsnlinclem1 49617 ldepsnlinc 49620 veronesev4lem 50976 |
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