| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > expne0d | Structured version Visualization version GIF version | ||
| Description: A nonnegative integer power is nonzero if its base is nonzero. (Contributed by Mario Carneiro, 28-May-2016.) |
| Ref | Expression |
|---|---|
| expcld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| sqrecd.1 | ⊢ (𝜑 → 𝐴 ≠ 0) |
| expclzd.3 | ⊢ (𝜑 → 𝑁 ∈ ℤ) |
| Ref | Expression |
|---|---|
| expne0d | ⊢ (𝜑 → (𝐴↑𝑁) ≠ 0) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | expcld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | sqrecd.1 | . 2 ⊢ (𝜑 → 𝐴 ≠ 0) | |
| 3 | expclzd.3 | . 2 ⊢ (𝜑 → 𝑁 ∈ ℤ) | |
| 4 | expne0i 14162 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0 ∧ 𝑁 ∈ ℤ) → (𝐴↑𝑁) ≠ 0) | |
| 5 | 1, 2, 3, 4 | syl3anc 1398 | 1 ⊢ (𝜑 → (𝐴↑𝑁) ≠ 0) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 ≠ wne 2957 (class class class)co 7417 ℂcc 11126 0cc0 11128 ℤcz 12619 ↑cexp 14129 |
| 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 2215 ax-ext 2734 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7740 ax-cnex 11184 ax-resscn 11185 ax-1cn 11186 ax-icn 11187 ax-addcl 11188 ax-addrcl 11189 ax-mulcl 11190 ax-mulrcl 11191 ax-mulcom 11192 ax-addass 11193 ax-mulass 11194 ax-distr 11195 ax-i2m1 11196 ax-1ne0 11197 ax-1rid 11198 ax-rnegex 11199 ax-rrecex 11200 ax-cnre 11201 ax-pre-lttri 11202 ax-pre-lttrn 11203 ax-pre-ltadd 11204 ax-pre-mulgt0 11205 |
| 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 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7374 df-ov 7420 df-oprab 7421 df-mpo 7422 df-om 7867 df-2nd 7991 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-er 8700 df-en 8957 df-dom 8958 df-sdom 8959 df-pnf 11273 df-mnf 11274 df-xr 11275 df-ltxr 11276 df-le 11277 df-sub 11471 df-neg 11472 df-div 11900 df-nn 12262 df-n0 12533 df-z 12620 df-uz 12892 df-seq 14070 df-exp 14130 |
| This theorem is used by: znsqcld 14230 absexpz 15396 0.999... 15974 bitsfzo 16531 bitsmod 16532 bitsinv1lem 16537 bitsuz 16570 pcexp 16957 dvdsprmpweqle 16984 pcaddlem 16986 pcadd 16987 qexpz 16999 dvrecg 26207 dvexp3 26212 plyeq0lem 26443 aareccl 26569 taylthlem2 26617 root1cj 27001 cxpeq 27002 dcubic1lem 27088 dcubic2 27089 cubic2 27093 cubic 27094 lgamgulmlem4 27276 basellem4 27328 basellem8 27332 lgseisenlem1 27619 lgseisenlem2 27620 lgsquadlem1 27624 nrt2irr 30961 constrresqrtcl 34295 cos9thpiminplylem2 34301 dya2icoseg 34796 dya2iocucvr 34803 omssubadd 34819 oddpwdc 34873 signsplypnf 35066 signsply0 35067 knoppndvlem7 37223 knoppndvlem17 37233 dvrelogpow2b 42942 aks4d1p1p6 42947 aks4d1p1p7 42948 aks4d1p1p5 42949 aks4d1p8d3 42960 aks4d1p8 42961 aks6d1c2p2 42993 exp11d 43209 dffltz 43488 fltdiv 43490 fltnlta 43517 3cubeslem4 43542 rmxyneg 43769 radcnvrat 45146 dvdivbd 46759 iblsplit 46802 wallispi2lem1 46907 wallispi2lem2 46908 wallispi2 46909 stirlinglem3 46912 stirlinglem4 46913 stirlinglem7 46916 stirlinglem8 46917 stirlinglem10 46919 stirlinglem13 46922 stirlinglem14 46923 stirlinglem15 46924 fourierdlem56 46998 fourierdlem57 46999 elaa2lem 47069 sge0ad2en 47267 ovnsubaddlem1 47406 fldivexpfllog2 49503 nn0digval 49538 dignnld 49541 dig2nn1st 49543 dig2bits 49552 dignn0flhalflem1 49553 dignn0flhalflem2 49554 dignn0ehalf 49555 itsclc0xyqsolr 49707 |
| Copyright terms: Public domain | W3C validator |