P

The descriptive theory that human beings are ultimately motived by self-interest. https://youtube.com/shorts/PZbemHiUtxA?feature=share

Knowledge that some proposition is true. https://youtube.com/shorts/_JqKePP_glU?feature=share

An abstract object that provides the shared meaning of different utterances of the same sentence, and its synonymous expressions in different languages. Also: A declarative sentence that is either true…

A feature that inheres in a substance. https://youtube.com/shorts/ISJ1PQ24PuA?feature=share

An irregular (usually probabilistic) disposition of an object or system to produce some result;for example, a tossed coin has a propensity of 0.5 to land heads. https://youtube.com/shorts/PBadRSAW00o?feature=share

A proof strategy whereby a statement’s negation is proved by assuming the statement is true.This assumption leads to a contradiction, which proves the assumption is false. (See also Negation introduction…

A proof strategy whereby a statement’s negation is proved by assuming the statement is true.This assumption leads to a contradiction, which proves the assumption is false. (See also Negation introduction…

A proof strategy whereby a conclusion is proved from a disjunction. (See also Disjunction elimination.) https://youtube.com/shorts/JZ_RCMpCjsU?feature=share

A proof is a step-by-step demonstration that one statement (the conclusion) follows logically from some others (the premises). A formal proof is a proof given in a formal system of…

The term for attempts to address or reconcile the reality of evil (moral badness) in a world created by an omnipotent and omnibenevolent God. https://youtube.com/shorts/gN90H32OZ2Y?feature=share