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GROUP
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does it satisfy for every subset of R?
groups
discretemathematics
settheory&algebra
abeliangroup
engineeringmathematics
asked
Jan 25, 2018
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Engineering Mathematics
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raviyogi
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every element in S will have unique identity and inverse,
for identity, e=0
x*0=x { x+0+0*x = x }
for inverse,
let y be inverse of x
x*y=0
x+y+xy=0
y=x/(1+x) { 1+x !=0)
x!= 1
answered
Jan 14
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Learner_jai
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