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Mirrors > Home > MPE Home > Th. List > zsqcl | Structured version Visualization version GIF version |
Description: Integers are closed under squaring. (Contributed by Scott Fenton, 18-Apr-2014.) (Revised by Mario Carneiro, 19-Apr-2014.) |
Ref | Expression |
---|---|
zsqcl | ⊢ (𝐴 ∈ ℤ → (𝐴↑2) ∈ ℤ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2nn0 11917 | . 2 ⊢ 2 ∈ ℕ0 | |
2 | zexpcl 13447 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 2 ∈ ℕ0) → (𝐴↑2) ∈ ℤ) | |
3 | 1, 2 | mpan2 689 | 1 ⊢ (𝐴 ∈ ℤ → (𝐴↑2) ∈ ℤ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2114 (class class class)co 7158 2c2 11695 ℕ0cn0 11900 ℤcz 11984 ↑cexp 13432 |
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 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-cnex 10595 ax-resscn 10596 ax-1cn 10597 ax-icn 10598 ax-addcl 10599 ax-addrcl 10600 ax-mulcl 10601 ax-mulrcl 10602 ax-mulcom 10603 ax-addass 10604 ax-mulass 10605 ax-distr 10606 ax-i2m1 10607 ax-1ne0 10608 ax-1rid 10609 ax-rnegex 10610 ax-rrecex 10611 ax-cnre 10612 ax-pre-lttri 10613 ax-pre-lttrn 10614 ax-pre-ltadd 10615 ax-pre-mulgt0 10616 |
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 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-nel 3126 df-ral 3145 df-rex 3146 df-reu 3147 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-pss 3956 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-tp 4574 df-op 4576 df-uni 4841 df-iun 4923 df-br 5069 df-opab 5131 df-mpt 5149 df-tr 5175 df-id 5462 df-eprel 5467 df-po 5476 df-so 5477 df-fr 5516 df-we 5518 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-pred 6150 df-ord 6196 df-on 6197 df-lim 6198 df-suc 6199 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-riota 7116 df-ov 7161 df-oprab 7162 df-mpo 7163 df-om 7583 df-2nd 7692 df-wrecs 7949 df-recs 8010 df-rdg 8048 df-er 8291 df-en 8512 df-dom 8513 df-sdom 8514 df-pnf 10679 df-mnf 10680 df-xr 10681 df-ltxr 10682 df-le 10683 df-sub 10874 df-neg 10875 df-nn 11641 df-2 11703 df-n0 11901 df-z 11985 df-uz 12247 df-seq 13373 df-exp 13433 |
This theorem is referenced by: zsqcl2 13505 zesq 13590 sqoddm1div8 13607 sqrt2irrlem 15603 dvdssqim 15906 dvdssq 15913 nn0gcdsq 16094 numdensq 16096 pythagtriplem3 16157 prmreclem1 16254 4sqlem8 16283 4sqlem10 16285 4sqlem11 16293 4sqlem12 16294 4sqlem14 16296 4sqlem15 16297 4sqlem16 16298 odadd2 18971 muval1 25712 dvdssqf 25717 mumullem1 25758 lgsmulsqcoprm 25921 lgsqrlem2 25925 lgsqrlem4 25927 lgsqr 25929 lgsqrmod 25930 lgsqrmodndvds 25931 2lgsoddprmlem2 25987 2sqlem3 25998 2sqlem4 25999 2sqlem8 26004 2sqblem 26009 2sqcoprm 26013 2sqmod 26014 pellexlem5 39437 rmspecnonsq 39511 rmspecfund 39513 jm2.18 39592 jm2.22 39599 jm2.20nn 39601 jm2.27a 39609 jm2.27c 39611 jm3.1lem3 39623 sfprmdvdsmersenne 43775 |
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