Claim: Argentina's federal capital is not Buenos Aires.
Evidence: The country is subdivided into twenty-three provinces -LRB- provincias , singular provincia -RRB- and one autonomous city -LRB- ciudad autónoma -RRB- , Buenos Aires , which is the federal capital of the nation -LRB- -LSB- Capital Federal , links = no -RSB- -RRB- as decided by Congress.