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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 12629 | . 2 ⊢ 0 ∈ ℤ | |
| 2 | mulg0.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | eqid 2762 | . . . 4 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | mulg0.o | . . . 4 ⊢ 0 = (0g‘𝐺) | |
| 5 | eqid 2762 | . . . 4 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
| 6 | mulg0.t | . . . 4 ⊢ · = (.g‘𝐺) | |
| 7 | eqid 2762 | . . . 4 ⊢ seq1((+g‘𝐺), (ℕ × {𝑋})) = seq1((+g‘𝐺), (ℕ × {𝑋})) | |
| 8 | 2, 3, 4, 5, 6, 7 | mulgval 19195 | . . 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 2762 | . . . 4 ⊢ 0 = 0 | |
| 10 | 9 | iftruei 4492 | . . 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 2813 | . 2 ⊢ ((0 ∈ ℤ ∧ 𝑋 ∈ 𝐵) → (0 · 𝑋) = 0 ) |
| 12 | 1, 11 | mpan 703 | 1 ⊢ (𝑋 ∈ 𝐵 → (0 · 𝑋) = 0 ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ifcif 4485 {csn 4587 class class class wbr 5107 × cxp 5657 ‘cfv 6537 (class class class)co 7416 0cc0 11127 1c1 11128 < clt 11270 -cneg 11469 ℕcn 12260 ℤcz 12618 seqcseq 14067 Basecbs 17305 +gcplusg 17346 0gc0g 17528 invgcminusg 19059 .gcmg 19191 |
| 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 7739 ax-cnex 11183 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-addrcl 11188 ax-mulcl 11189 ax-mulrcl 11190 ax-mulcom 11191 ax-addass 11192 ax-mulass 11193 ax-distr 11194 ax-i2m1 11195 ax-1ne0 11196 ax-1rid 11197 ax-rnegex 11198 ax-rrecex 11199 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 ax-pre-ltadd 11203 ax-pre-mulgt0 11204 |
| 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-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 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7866 df-1st 7989 df-2nd 7990 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-er 8699 df-en 8956 df-dom 8957 df-sdom 8958 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11470 df-neg 11471 df-nn 12261 df-n0 12532 df-z 12619 df-uz 12891 df-seq 14068 df-mulg 19192 |
| This theorem is used by: ressmulgnn0 19201 mulgnn0gsum 19204 mulgnn0p1 19209 mulgnn0subcl 19211 mulgneg 19216 mulgaddcom 19222 mulginvcom 19223 mulgnn0z 19225 mulgnn0dir 19228 mulgneg2 19232 mulgnn0ass 19234 mhmmulg 19239 submmulg 19242 cycsubm 19331 odid 19666 oddvdsnn0 19672 oddvds 19675 odf1 19690 gexid 19709 mulgnn0di 19953 0cyg 20021 gsumconst 20062 omndmul2 20261 omndmul 20263 srgmulgass 20357 srgpcomp 20358 srgbinomlem3 20368 srgbinomlem4 20369 srgbinom 20371 mulgass2 20452 lmodvsmmulgdi 21082 cnfldmulg 21618 cnfldexp 21619 freshmansdream 21788 assamulgscmlem1 22115 mplcoe3 22255 mplcoe5 22257 mplbas2 22259 psrbagev1 22294 evlslem3 22297 evlslem1 22299 evlsvvvallem 22308 evlsvvval 22310 selvvvval 22359 mhppwdeg 22379 psdpw 22399 ply1scltm 22508 ply1idvr1 22521 chfacfscmulgsum 23086 chfacfpmmulgsum 23090 cpmadugsumlemF 23102 tmdmulg 24319 clmmulg 25330 dchrptlem2 27499 xrsmulgzz 33436 ressmulgnn0d 33471 archirng 33615 archirngz 33616 archiabllem1b 33619 archiabllem2c 33622 elrgspnlem1 33669 elrgspnlem2 33670 elrgspnlem3 33671 elrgspnlem4 33672 elrgspn 33673 elrgspnsubrunlem1 33674 elrgspnsubrunlem2 33675 rprmdvdspow 33930 evl1deg1 33973 evl1deg2 33974 evl1deg3 33975 evlextv 34039 vieta 34077 aks6d1c1p6 42967 idomnnzpownz 42985 aks6d1c5lem2 42991 deg1pow 42994 aks6d1c6isolem1 43027 aks6d1c6lem5 43030 domnexpgn0cl 43392 abvexp 43401 evlselv 43422 mhphflem 43429 mhphf 43430 lmodvsmdi 49296 |
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