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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 12504 | . 2 ⊢ 0 ∈ ℤ | |
| 2 | mulg0.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | eqid 2737 | . . . 4 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | mulg0.o | . . . 4 ⊢ 0 = (0g‘𝐺) | |
| 5 | eqid 2737 | . . . 4 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
| 6 | mulg0.t | . . . 4 ⊢ · = (.g‘𝐺) | |
| 7 | eqid 2737 | . . . 4 ⊢ seq1((+g‘𝐺), (ℕ × {𝑋})) = seq1((+g‘𝐺), (ℕ × {𝑋})) | |
| 8 | 2, 3, 4, 5, 6, 7 | mulgval 19006 | . . 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 2737 | . . . 4 ⊢ 0 = 0 | |
| 10 | 9 | iftruei 4487 | . . 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 2788 | . 2 ⊢ ((0 ∈ ℤ ∧ 𝑋 ∈ 𝐵) → (0 · 𝑋) = 0 ) |
| 12 | 1, 11 | mpan 691 | 1 ⊢ (𝑋 ∈ 𝐵 → (0 · 𝑋) = 0 ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ifcif 4480 {csn 4581 class class class wbr 5099 × cxp 5623 ‘cfv 6493 (class class class)co 7361 0cc0 11031 1c1 11032 < clt 11171 -cneg 11370 ℕcn 12150 ℤcz 12493 seqcseq 13929 Basecbs 17141 +gcplusg 17182 0gc0g 17364 invgcminusg 18869 .gcmg 19002 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7683 ax-cnex 11087 ax-resscn 11088 ax-1cn 11089 ax-icn 11090 ax-addcl 11091 ax-addrcl 11092 ax-mulcl 11093 ax-mulrcl 11094 ax-mulcom 11095 ax-addass 11096 ax-mulass 11097 ax-distr 11098 ax-i2m1 11099 ax-1ne0 11100 ax-1rid 11101 ax-rnegex 11102 ax-rrecex 11103 ax-cnre 11104 ax-pre-lttri 11105 ax-pre-lttrn 11106 ax-pre-ltadd 11107 ax-pre-mulgt0 11108 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3062 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7318 df-ov 7364 df-oprab 7365 df-mpo 7366 df-om 7812 df-1st 7936 df-2nd 7937 df-frecs 8226 df-wrecs 8257 df-recs 8306 df-rdg 8344 df-er 8638 df-en 8889 df-dom 8890 df-sdom 8891 df-pnf 11173 df-mnf 11174 df-xr 11175 df-ltxr 11176 df-le 11177 df-sub 11371 df-neg 11372 df-nn 12151 df-n0 12407 df-z 12494 df-uz 12757 df-seq 13930 df-mulg 19003 |
| This theorem is referenced by: ressmulgnn0 19012 mulgnn0gsum 19015 mulgnn0p1 19020 mulgnn0subcl 19022 mulgneg 19027 mulgaddcom 19033 mulginvcom 19034 mulgnn0z 19036 mulgnn0dir 19039 mulgneg2 19043 mulgnn0ass 19045 mhmmulg 19050 submmulg 19053 cycsubm 19136 odid 19472 oddvdsnn0 19478 oddvds 19481 odf1 19496 gexid 19515 mulgnn0di 19759 0cyg 19827 gsumconst 19868 omndmul2 20067 omndmul 20069 srgmulgass 20157 srgpcomp 20158 srgbinomlem3 20168 srgbinomlem4 20169 srgbinom 20171 mulgass2 20249 lmodvsmmulgdi 20853 cnfldmulg 21363 cnfldexp 21364 freshmansdream 21534 assamulgscmlem1 21860 mplcoe3 21998 mplcoe5 22000 mplbas2 22002 psrbagev1 22037 evlslem3 22040 evlslem1 22042 evlsvvvallem 22051 evlsvvval 22053 mhppwdeg 22098 psdpw 22118 ply1scltm 22228 ply1idvr1 22243 chfacfscmulgsum 22809 chfacfpmmulgsum 22813 cpmadugsumlemF 22825 tmdmulg 24041 clmmulg 25062 dchrptlem2 27237 xrsmulgzz 33094 ressmulgnn0d 33130 archirng 33274 archirngz 33275 archiabllem1b 33278 archiabllem2c 33281 elrgspnlem1 33328 elrgspnlem2 33329 elrgspnlem3 33330 elrgspnlem4 33331 elrgspn 33332 elrgspnsubrunlem1 33333 elrgspnsubrunlem2 33334 rprmdvdspow 33618 evl1deg1 33661 evl1deg2 33662 evl1deg3 33663 evlextv 33711 vieta 33749 aks6d1c1p6 42447 idomnnzpownz 42465 aks6d1c5lem2 42471 deg1pow 42474 aks6d1c6isolem1 42507 aks6d1c6lem5 42510 domnexpgn0cl 42856 abvexp 42865 selvvvval 42906 evlselv 42908 mhphflem 42917 mhphf 42918 lmodvsmdi 48702 |
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