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6 Nov 2019
We have a group Homomorphism Ï which define Ï:G--->G' , and His subgroup of G'. show the following:
a) aâb iff Ï(a)=Ï(b), which defines an equivalence relation onG.
b) the inverse image Ï-1(H) is a subgroup of G.
We have a group Homomorphism Ï which define Ï:G--->G' , and His subgroup of G'. show the following:
a) aâb iff Ï(a)=Ï(b), which defines an equivalence relation onG.
b) the inverse image Ï-1(H) is a subgroup of G.
Hubert KochLv2
31 Jan 2019
