# gr.group theory – Irreducible Representation of A_5

Knowing the fact that standard representation arising out of permutation representation of $$A_5$$ over $$mathbb{C}$$ is irreducible and of degree $$4$$. What can we conclude about the irreducibility over general field, whose characteristics does not divide the order of $$A_5$$. Is it irreducible ? Can we use Clifford Theory here ? How ?