1Descartes posits the existence of a thinking, non-material substance in his Meditations.
2The economist posits that the current recession is a result of the global trade imbalance.
3In his groundbreaking paper, the physicist posits a new interpretation of quantum mechanics.
4The philosopher's argument relies on the posit that human beings have free will.
5Critics argue that the researcher's findings are based on an unsubstantiated posit about the nature of human behavior.