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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 12535 | . 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 19047 | . . 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 4474 | . . 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 4467 {csn 4568 class class class wbr 5086 × cxp 5629 ‘cfv 6499 (class class class)co 7367 0cc0 11038 1c1 11039 < clt 11179 -cneg 11378 ℕcn 12174 ℤcz 12524 seqcseq 13963 Basecbs 17179 +gcplusg 17220 0gc0g 17402 invgcminusg 18910 .gcmg 19043 |
| 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 5232 ax-nul 5242 ax-pow 5308 ax-pr 5376 ax-un 7689 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 |
| 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 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6266 df-ord 6327 df-on 6328 df-lim 6329 df-suc 6330 df-iota 6455 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-1st 7942 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-nn 12175 df-n0 12438 df-z 12525 df-uz 12789 df-seq 13964 df-mulg 19044 |
| This theorem is referenced by: ressmulgnn0 19053 mulgnn0gsum 19056 mulgnn0p1 19061 mulgnn0subcl 19063 mulgneg 19068 mulgaddcom 19074 mulginvcom 19075 mulgnn0z 19077 mulgnn0dir 19080 mulgneg2 19084 mulgnn0ass 19086 mhmmulg 19091 submmulg 19094 cycsubm 19177 odid 19513 oddvdsnn0 19519 oddvds 19522 odf1 19537 gexid 19556 mulgnn0di 19800 0cyg 19868 gsumconst 19909 omndmul2 20108 omndmul 20110 srgmulgass 20198 srgpcomp 20199 srgbinomlem3 20209 srgbinomlem4 20210 srgbinom 20212 mulgass2 20290 lmodvsmmulgdi 20892 cnfldmulg 21384 cnfldexp 21385 freshmansdream 21554 assamulgscmlem1 21879 mplcoe3 22016 mplcoe5 22018 mplbas2 22020 psrbagev1 22055 evlslem3 22058 evlslem1 22060 evlsvvvallem 22069 evlsvvval 22071 mhppwdeg 22116 psdpw 22136 ply1scltm 22246 ply1idvr1 22259 chfacfscmulgsum 22825 chfacfpmmulgsum 22829 cpmadugsumlemF 22841 tmdmulg 24057 clmmulg 25068 dchrptlem2 27228 xrsmulgzz 33069 ressmulgnn0d 33105 archirng 33249 archirngz 33250 archiabllem1b 33253 archiabllem2c 33256 elrgspnlem1 33303 elrgspnlem2 33304 elrgspnlem3 33305 elrgspnlem4 33306 elrgspn 33307 elrgspnsubrunlem1 33308 elrgspnsubrunlem2 33309 rprmdvdspow 33593 evl1deg1 33636 evl1deg2 33637 evl1deg3 33638 evlextv 33686 vieta 33724 aks6d1c1p6 42553 idomnnzpownz 42571 aks6d1c5lem2 42577 deg1pow 42580 aks6d1c6isolem1 42613 aks6d1c6lem5 42616 domnexpgn0cl 42968 abvexp 42977 selvvvval 43018 evlselv 43020 mhphflem 43029 mhphf 43030 lmodvsmdi 48849 |
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