Or that knowing that the set of permutation of a set of n element is closed under multiplication and is also a finite set mean that no matter how you multiply the permutation together you will only get a finite number of possible result. So i tried looking for examples where something was not closed under addition and I found this refer to attached image. Equal by definition equal by definition.
Equal by definition equal by definition.
What closed under multiplication means is. The operations can include any operation addition multiplication square root etc. What does it mean to be closed under additionHelpful. Please support me on Patreon.