Counterfactual (disambiguation)

Counterfactual is counterfactual conditional, a conditional containing an if-clause which is contrary to fact.

Counterfactual may also refer to:

Arts and social science

 * Counterfactual thinking, in psychology
 * Counterfactual thought experiments, in philosophy, science, etc.
 * Counterfactual history, in historiography
 * Alternate history, a literary genre
 * Counterfactual subjunctive, grammatical forms which in English are known as the past and pluperfect forms of the English subjunctive mood

Physics

 * Counterfactual definiteness, in quantum theory
 * Elitzur–Vaidman bomb tester, in quantum theory (counterfactual measurements)

Contrafactualité