Do you know what a half-adder is supposed to do? it takes twobinary bits, and adds them together. abinary bittakes values0 or 1, orTrue or False, or any two differing values.

you should be able to come up with a list of all possible inputs yourself. and if you consider adding the numbers "0" and "1" together in binary... you should be able to consider the outputs, a 'sum' value and a 'carry' value.