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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 12704 | . 2 ⊢ 0 ∈ ℤ | |
| 2 | mulg0.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | eqid 2760 | . . . 4 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 4 | mulg0.o | . . . 4 ⊢ 0 = (0g‘𝐺) | |
| 5 | eqid 2760 | . . . 4 ⊢ (invg‘𝐺) = (invg‘𝐺) | |
| 6 | mulg0.t | . . . 4 ⊢ · = (.g‘𝐺) | |
| 7 | eqid 2760 | . . . 4 ⊢ seq1((+g‘𝐺), (ℕ × {𝑋})) = seq1((+g‘𝐺), (ℕ × {𝑋})) | |
| 8 | 2, 3, 4, 5, 6, 7 | mulgval 19281 | . . 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 2760 | . . . 4 ⊢ 0 = 0 | |
| 10 | 9 | iftruei 4488 | . . 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 2811 | . 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 1569 ∈ wcel 2144 ifcif 4481 {csn 4583 class class class wbr 5102 × cxp 5648 ‘cfv 6538 (class class class)co 7420 0cc0 11200 1c1 11201 < clt 11343 -cneg 11542 ℕcn 12335 ℤcz 12693 seqcseq 14144 Basecbs 17387 +gcplusg 17428 0gc0g 17610 invgcminusg 19145 .gcmg 19277 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-cnex 11256 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-er 8717 df-en 8974 df-dom 8975 df-sdom 8976 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-nn 12336 df-n0 12607 df-z 12694 df-uz 12966 df-seq 14145 df-mulg 19278 |
| This theorem is used by: ressmulgnn0 19287 mulgnn0gsum 19290 mulgnn0p1 19295 mulgnn0subcl 19297 mulgneg 19302 mulgaddcom 19308 mulginvcom 19309 mulgnn0z 19311 mulgnn0dir 19314 mulgneg2 19318 mulgnn0ass 19320 mhmmulg 19325 submmulg 19328 cycsubm 19417 odid 19752 oddvdsnn0 19758 oddvds 19761 odf1 19776 gexid 19795 mulgnn0di 20039 0cyg 20107 gsumconst 20148 omndmul2 20347 omndmul 20349 srgmulgass 20443 srgpcomp 20444 srgbinomlem3 20454 srgbinomlem4 20455 srgbinom 20457 mulgass2 20540 lmodvsmmulgdi 21172 cnfldmulg 21710 cnfldexp 21711 freshmansdream 21880 assamulgscmlem1 22207 mplcoe3 22347 mplcoe5 22349 mplbas2 22351 psrbagev1 22386 evlslem3 22389 evlslem1 22391 evlsvvvallem 22400 evlsvvval 22402 selvvvval 22451 mhppwdeg 22471 psdpw 22491 ply1scltm 22600 ply1idvr1 22613 chfacfscmulgsum 23178 chfacfpmmulgsum 23182 cpmadugsumlemF 23194 tmdmulg 24411 clmmulg 25422 dchrptlem2 27592 xrsmulgzz 33612 ressmulgnn0d 33647 archirng 33791 archirngz 33792 archiabllem1b 33795 archiabllem2c 33798 elrgspnlem1 33845 elrgspnlem2 33846 elrgspnlem3 33847 elrgspnlem4 33848 elrgspn 33849 elrgspnsubrunlem1 33850 elrgspnsubrunlem2 33851 rprmdvdspow 34107 evl1deg1 34150 evl1deg2 34151 evl1deg3 34152 evlextv 34216 vieta 34254 aks6d1c1p6 43207 idomnnzpownz 43225 aks6d1c5lem2 43231 deg1pow 43234 aks6d1c6isolem1 43267 aks6d1c6lem5 43270 domnexpgn0cl 43627 abvexp 43639 evlselv 43660 mhphflem 43667 mhphf 43668 lmodvsmdi 49534 |
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