Definition:Reduction to First Figure/Direct
< Definition:Reduction to First Figure(Redirected from Definition:Direct Reduction to First Figure)
Jump to navigation
Jump to search
Definition
Direct reduction to the first figure is a form of the reduction to the first figure method for determining the validity of a categorical syllogism.
This form of the method works forward from the first figure using various rules of categorical statements in order to derive valid patterns of other figures.
Sources
- 1965: E.J. Lemmon: Beginning Logic ... (previous) ... (next): Chapter $4$: The Predicate Calculus $2$: $4$ The Syllogism