Hello,(adsbygoogle = window.adsbygoogle || []).push({});

Im having a bit of trouble with this one question, a little help would be great.

this is a mapping question involving surjectivity.

S: A --> BT: B --> C

T*: B --> C satisfiesTS=T*S

AndSis surjective

Show thatT=T*

Now i know the defenition of surjective. Im just having trouble showing what i have to show

let x be in A and y be in B

There exists an x in A, for every y in B such that S(x) = y

--thats surjective--

but where do i go now??

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Algebra question

**Physics Forums | Science Articles, Homework Help, Discussion**