The term 'cold' refers to the fact that you haven't laid any groundwork for your call. If you are calling prospects who have already shown an interest in your products, such as a prospect who fills out a postcard or website request for information, then it's referred to as 'warm calling.'.
Refutation is the act of proving something wrong or false. An example of a refutation is the argument that reverses a court decision. 1  the act of refuting, or proving false or wrong; disproof. 2  something that refutes, as an argument.
reductio, reductio ad absurdum - (reduction to the absurd) a disproof by showing that the consequences of the proposition are absurd; or a proof of a proposition by showing that its negation leads to a contradiction. confutation - evidence that refutes conclusively. counterexample - refutation by example.