Английский словарь американских идиом - go to show

or go to prove {v. phr.}, {informal} To seem to prove; act or serve to show (a fact); demonstrate. - Often used after "it". * /Our team beat a bigger team, and it just goes to show you can win if you play hard enough./ * /The hard winter at Valley Forge goes to show that our soldiers suffered a great deal to win the Revolution./