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 that "P", the antecedent of the conditional claim, is true. From these two premises it can be logically concluded that "Q", the consequent of the conditional claim, must be true as well. In artificial intelligence, "modus ponens" is often called forward chaining. An example of an argument that fits the form "modus ponens": This argument is valid, but this has no bearing on whether any of the statements in the argument are true; for "modus ponens" to be a sound argument, the premises must be true for any true instances of the conclusion. An argument can be valid but nonetheless