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| Mirrors > Home > MPE Home > Th. List > mulg0 | Structured version Visualization version GIF version | ||
| Description: Group multiple (exponentiation) operation at zero. (Contributed by Mario Carneiro, 11-Dec-2014.) |
| Ref | Expression |
|---|---|
| mulg0.b | ⊢ 𝐵 = (Base‘𝐺) |
| mulg0.o | ⊢ 0 = (0g‘𝐺) |
| mulg0.t | ⊢ · = (.g‘𝐺) |
| Ref | Expression |
|---|---|
| mulg0 | ⊢ (𝑋 ∈ 𝐵 → (0 · 𝑋) = 0 ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0z 12601 | . 2 ⊢ 0 ∈ ℤ | |
| 2 | mulg0.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | eqid 2761 | . . . 4 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | mulg0.o | . . . 4 ⊢ 0 = (0g‘𝐺) | |
| 5 | eqid 2761 | . . . 4 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
| 6 | mulg0.t | . . . 4 ⊢ · = (.g‘𝐺) | |
| 7 | eqid 2761 | . . . 4 ⊢ seq1((+g‘𝐺), (ℕ × {𝑋})) = seq1((+g‘𝐺), (ℕ × {𝑋})) | |
| 8 | 2, 3, 4, 5, 6, 7 | mulgval 19136 | . . 3 ⊢ ((0 ∈ ℤ ∧ 𝑋 ∈ 𝐵) → (0 · 𝑋) = if(0 = 0, 0 , if(0 < 0, (seq1((+g‘𝐺), (ℕ × {𝑋}))‘0), ((invg‘𝐺)‘(seq1((+g‘𝐺), (ℕ × {𝑋}))‘-0))))) |
| 9 | eqid 2761 | . . . 4 ⊢ 0 = 0 | |
| 10 | 9 | iftruei 4493 | . . 3 ⊢ if(0 = 0, 0 , if(0 < 0, (seq1((+g‘𝐺), (ℕ × {𝑋}))‘0), ((invg‘𝐺)‘(seq1((+g‘𝐺), (ℕ × {𝑋}))‘-0)))) = 0 |
| 11 | 8, 10 | eqtrdi 2812 | . 2 ⊢ ((0 ∈ ℤ ∧ 𝑋 ∈ 𝐵) → (0 · 𝑋) = 0 ) |
| 12 | 1, 11 | mpan 702 | 1 ⊢ (𝑋 ∈ 𝐵 → (0 · 𝑋) = 0 ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1568 ∈ wcel 2141 ifcif 4486 {csn 4588 class class class wbr 5108 × cxp 5659 ‘cfv 6536 (class class class)co 7410 0cc0 11099 1c1 11100 < clt 11242 -cneg 11441 ℕcn 12232 ℤcz 12590 seqcseq 14036 Basecbs 17268 +gcplusg 17309 0gc0g 17491 invgcminusg 19000 .gcmg 19132 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5256 ax-nul 5268 ax-pow 5336 ax-pr 5404 ax-un 7732 ax-cnex 11155 ax-resscn 11156 ax-1cn 11157 ax-icn 11158 ax-addcl 11159 ax-addrcl 11160 ax-mulcl 11161 ax-mulrcl 11162 ax-mulcom 11163 ax-addass 11164 ax-mulass 11165 ax-distr 11166 ax-i2m1 11167 ax-1ne0 11168 ax-1rid 11169 ax-rnegex 11170 ax-rrecex 11171 ax-cnre 11172 ax-pre-lttri 11173 ax-pre-lttrn 11174 ax-pre-ltadd 11175 ax-pre-mulgt0 11176 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2095 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5556 df-eprel 5561 df-po 5569 df-so 5570 df-fr 5614 df-we 5616 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-pred 6302 df-ord 6363 df-on 6364 df-lim 6365 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7367 df-ov 7413 df-oprab 7414 df-mpo 7415 df-om 7862 df-1st 7985 df-2nd 7986 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-er 8693 df-en 8943 df-dom 8944 df-sdom 8945 df-pnf 11244 df-mnf 11245 df-xr 11246 df-ltxr 11247 df-le 11248 df-sub 11442 df-neg 11443 df-nn 12233 df-n0 12504 df-z 12591 df-uz 12862 df-seq 14037 df-mulg 19133 |
| This theorem is referenced by: ressmulgnn0 19142 mulgnn0gsum 19145 mulgnn0p1 19150 mulgnn0subcl 19152 mulgneg 19157 mulgaddcom 19163 mulginvcom 19164 mulgnn0z 19166 mulgnn0dir 19169 mulgneg2 19173 mulgnn0ass 19175 mhmmulg 19180 submmulg 19183 cycsubm 19272 odid 19607 oddvdsnn0 19613 oddvds 19616 odf1 19631 gexid 19650 mulgnn0di 19894 0cyg 19962 gsumconst 20003 omndmul2 20202 omndmul 20204 srgmulgass 20298 srgpcomp 20299 srgbinomlem3 20309 srgbinomlem4 20310 srgbinom 20312 mulgass2 20391 lmodvsmmulgdi 20997 cnfldmulg 21533 cnfldexp 21534 freshmansdream 21703 assamulgscmlem1 22028 mplcoe3 22168 mplcoe5 22170 mplbas2 22172 psrbagev1 22207 evlslem3 22210 evlslem1 22212 evlsvvvallem 22221 evlsvvval 22223 selvvvval 22272 mhppwdeg 22292 psdpw 22312 ply1scltm 22421 ply1idvr1 22434 chfacfscmulgsum 22996 chfacfpmmulgsum 23000 cpmadugsumlemF 23012 tmdmulg 24228 clmmulg 25239 dchrptlem2 27405 xrsmulgzz 33295 ressmulgnn0d 33330 archirng 33474 archirngz 33475 archiabllem1b 33478 archiabllem2c 33481 elrgspnlem1 33528 elrgspnlem2 33529 elrgspnlem3 33530 elrgspnlem4 33531 elrgspn 33532 elrgspnsubrunlem1 33533 elrgspnsubrunlem2 33534 rprmdvdspow 33789 evl1deg1 33832 evl1deg2 33833 evl1deg3 33834 evlextv 33898 vieta 33936 aks6d1c1p6 42827 idomnnzpownz 42845 aks6d1c5lem2 42851 deg1pow 42854 aks6d1c6isolem1 42887 aks6d1c6lem5 42890 domnexpgn0cl 43239 abvexp 43248 evlselv 43269 mhphflem 43276 mhphf 43277 lmodvsmdi 49104 |
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