- #1
Repetit
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Hey
Im trying to study abstract algebra, set theory and group theory, on my own. I have trouble understanding how to construct mathematical proofs though. Some of the things the excercises tells me to prove, seems so intuitively clear and obvious that I don't know what's left to prove. For example, prove that
[tex]
A\cup B = B\cup A
[/tex]
where A and B are two sets, or
[tex]
A\cap(B\cup C)=(A\cap B)\cup (A\cap C)
[/tex]
I have no idea how to start. Can someone give me a hint on these? And maybe a hint on general proof making in mathematics?
Im trying to study abstract algebra, set theory and group theory, on my own. I have trouble understanding how to construct mathematical proofs though. Some of the things the excercises tells me to prove, seems so intuitively clear and obvious that I don't know what's left to prove. For example, prove that
[tex]
A\cup B = B\cup A
[/tex]
where A and B are two sets, or
[tex]
A\cap(B\cup C)=(A\cap B)\cup (A\cap C)
[/tex]
I have no idea how to start. Can someone give me a hint on these? And maybe a hint on general proof making in mathematics?