Question

different between finite and infinite

Answer 1

finite have ending limit
but
infinite doesn't have any ending limit.

Answer 2

Countable sets can either be finite orinfinite, but uncountable sets are always infinite just a 'larger' infinite. More precisely, A set X is finite if there is a bijection between the set X and the finite whole numbers, N_n={1,2,3,...,n}. If X is not finite, then X isinfinite (they mean the same thing).