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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 12524 | . 2 ⊢ 0 ∈ ℤ | |
| 2 | mulg0.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | eqid 2735 | . . . 4 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | mulg0.o | . . . 4 ⊢ 0 = (0g‘𝐺) | |
| 5 | eqid 2735 | . . . 4 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
| 6 | mulg0.t | . . . 4 ⊢ · = (.g‘𝐺) | |
| 7 | eqid 2735 | . . . 4 ⊢ seq1((+g‘𝐺), (ℕ × {𝑋})) = seq1((+g‘𝐺), (ℕ × {𝑋})) | |
| 8 | 2, 3, 4, 5, 6, 7 | mulgval 19036 | . . 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 2735 | . . . 4 ⊢ 0 = 0 | |
| 10 | 9 | iftruei 4463 | . . 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 2786 | . 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 4456 {csn 4557 class class class wbr 5074 × cxp 5618 ‘cfv 6487 (class class class)co 7356 0cc0 11027 1c1 11028 < clt 11168 -cneg 11367 ℕcn 12163 ℤcz 12513 seqcseq 13952 Basecbs 17168 +gcplusg 17209 0gc0g 17391 invgcminusg 18899 .gcmg 19032 |
| 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 2184 ax-ext 2707 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7678 ax-cnex 11083 ax-resscn 11084 ax-1cn 11085 ax-icn 11086 ax-addcl 11087 ax-addrcl 11088 ax-mulcl 11089 ax-mulrcl 11090 ax-mulcom 11091 ax-addass 11092 ax-mulass 11093 ax-distr 11094 ax-i2m1 11095 ax-1ne0 11096 ax-1rid 11097 ax-rnegex 11098 ax-rrecex 11099 ax-cnre 11100 ax-pre-lttri 11101 ax-pre-lttrn 11102 ax-pre-ltadd 11103 ax-pre-mulgt0 11104 |
| 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 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3060 df-reu 3341 df-rab 3388 df-v 3429 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6254 df-ord 6315 df-on 6316 df-lim 6317 df-suc 6318 df-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-f1 6492 df-fo 6493 df-f1o 6494 df-fv 6495 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7807 df-1st 7931 df-2nd 7932 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-er 8632 df-en 8883 df-dom 8884 df-sdom 8885 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-nn 12164 df-n0 12427 df-z 12514 df-uz 12778 df-seq 13953 df-mulg 19033 |
| This theorem is referenced by: ressmulgnn0 19042 mulgnn0gsum 19045 mulgnn0p1 19050 mulgnn0subcl 19052 mulgneg 19057 mulgaddcom 19063 mulginvcom 19064 mulgnn0z 19066 mulgnn0dir 19069 mulgneg2 19073 mulgnn0ass 19075 mhmmulg 19080 submmulg 19083 cycsubm 19166 odid 19502 oddvdsnn0 19508 oddvds 19511 odf1 19526 gexid 19545 mulgnn0di 19789 0cyg 19857 gsumconst 19898 omndmul2 20097 omndmul 20099 srgmulgass 20187 srgpcomp 20188 srgbinomlem3 20198 srgbinomlem4 20199 srgbinom 20201 mulgass2 20279 lmodvsmmulgdi 20881 cnfldmulg 21373 cnfldexp 21374 freshmansdream 21543 assamulgscmlem1 21868 mplcoe3 22005 mplcoe5 22007 mplbas2 22009 psrbagev1 22044 evlslem3 22047 evlslem1 22049 evlsvvvallem 22058 evlsvvval 22060 mhppwdeg 22105 psdpw 22125 ply1scltm 22234 ply1idvr1 22247 chfacfscmulgsum 22813 chfacfpmmulgsum 22817 cpmadugsumlemF 22829 tmdmulg 24045 clmmulg 25056 dchrptlem2 27216 xrsmulgzz 33057 ressmulgnn0d 33093 archirng 33237 archirngz 33238 archiabllem1b 33241 archiabllem2c 33244 elrgspnlem1 33291 elrgspnlem2 33292 elrgspnlem3 33293 elrgspnlem4 33294 elrgspn 33295 elrgspnsubrunlem1 33296 elrgspnsubrunlem2 33297 rprmdvdspow 33581 evl1deg1 33624 evl1deg2 33625 evl1deg3 33626 evlextv 33674 vieta 33712 aks6d1c1p6 42541 idomnnzpownz 42559 aks6d1c5lem2 42565 deg1pow 42568 aks6d1c6isolem1 42601 aks6d1c6lem5 42604 domnexpgn0cl 42956 abvexp 42965 selvvvval 43006 evlselv 43008 mhphflem 43017 mhphf 43018 lmodvsmdi 48843 |
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