Modus vivendi Modus vivendi Modus vivendi is a Latin phrase that means "mode of living" or “way of life”. It often is used to mean an arrangement or agreement that allows conflicting parties to coexist in peace. In science it is used to describe lifestyles. "Modus" means "mode", "way", "method", or "manner". "Vivendi" means "of living". The phrase is often used to describe informal and temporary arrangements in political affairs. For example, if two sides reach a "modus vivendi" regarding disputed territories, despite political, historical or cultural incompatibilities, an accommodation of their respective differences is established for the sake of contingency. In
Modus ponens Modus ponens In propositional logic, modus ponens (; MP; also modus ponendo ponens (Latin for "mode that affirms by affirming") or implication elimination) is a rule of inference. It can be summarized as ""P implies Q" and "P" is asserted to be true, therefore "Q" must be true." "Modus ponens" is closely related to another valid form of argument, "modus tollens". Both have apparently similar but invalid forms such as affirming the consequent, denying the antecedent, and evidence of absence. Constructive dilemma is the disjunctive version of "modus ponens". Hypothetical syllogism is closely related to "modus ponens" and sometimes thought