hypothetical proposition
11logic, history of — Introduction the history of the discipline from its origins among the ancient Greeks to the present time. Origins of logic in the West Precursors of ancient logic There was a medieval tradition according to which the Greek philosopher …
12Consequent — For other uses, see Consequence (disambiguation). A consequent is the second half of a hypothetical proposition. In the standard form of such a proposition, it is the part that follows then . Examples: If P, then Q. Q is the consequent of this… …
13modus ponens and modus tollens — (Latin: method of affirming and method of denying ) In logic, two types of inference that can be drawn using a hypothetical proposition i. e., from a proposition of the form If p, then q (symbolically p ⊃ q). Modus ponens refers to inferences of… …
14Antecedent (logic) — An antecedent is the first half of a hypothetical proposition.Examples:* If P, then Q.This is a standard logical formulation of a hypothetical proposition. In this case, the antecedent is P, and the consequent is Q.* If X is a man, then X is… …
15What the Tortoise Said to Achilles — is a brief dialogue by Lewis Carroll which playfully problematises the foundations of logic. The title alludes to one of Zeno s paradoxes of motion, in which Achilles could never overtake the tortoise in a race. In Carroll s dialogue, the… …
16syllogism — /ˈsɪlədʒɪzəm / (say siluhjizuhm) noun 1. Logic an argument with two premises and a conclusion. Both the premises of a categorical syllogism are categorical propositions, containing just three distinct terms between them, e.g. all men are mortal… …
17hy´po|thet´i|cal|ly — hy|po|thet|i|cal «HY puh THEHT uh kuhl, HIHP uh », adjective. 1. of a hypothesis; based on or like a hypothesis; assumed; supposed: »a hypothetical case. 2. Logic. a) involving a hypothesis or condition in a proposition; conditional. b) having a… …
18hy|po|thet|i|cal — «HY puh THEHT uh kuhl, HIHP uh », adjective. 1. of a hypothesis; based on or like a hypothesis; assumed; supposed: »a hypothetical case. 2. Logic. a) involving a hypothesis or condition in a proposition; conditional. b) having a hypothetical… …
19consequent — 1. adjective a) Following as a result, inference, or natural effect. His retirement and consequent spare time enabled him to travel more. b) Of or pertaining to consequences. See Also: consequence, antecedent, subseq …
20consequent — /ˈkɒnsəkwənt / (say konsuhkwuhnt) adjective 1. following as an effect or result; resulting. 2. following as a logical conclusion. 3. logically consistent. 4. Geology (of a river) having a course or direction dependent on, or controlled by, the… …
