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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 2145 4c4 12399 ℤcz 12693 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pr 5391 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 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 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 43110 aks4d1p1p7 43124 aks4d1p1p5 43125 aks4d1p1 43126 inductionexd 45154 wallispi2lem1 47080 goldratmolem2 47932 fmtno4prmfac 48656 31prm 48681 mod42tp1mod8 48686 nprmdvdsfacm1 48708 8even 48810 341fppr2 48831 4fppr1 48832 9fppr8 48834 fpprel2 48838 sbgoldbo 48884 nnsum3primesle9 48891 nnsum4primeseven 48897 nnsum4primesevenALTV 48898 tgblthelfgott 48912 gpg5nbgr3star 49178 gpgprismgr4cycllem9 49200 zlmodzxzequa 49607 zlmodzxznm 49608 zlmodzxzequap 49610 zlmodzxzldeplem3 49613 zlmodzxzldep 49615 ldepsnlinclem1 49616 ldepsnlinc 49619 veronesev4lem 50975 |
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