Syllogistic Mood
A syllogistic mood defines a syllogism's type based on the categorical propositions…
Subcontrary: Understanding the Logic of Statements
Subcontrary statements share a unique logical relationship where they can both be…
Subalternation in Logic
Subalternation describes how a universal statement's truth guarantees the truth of its…
Subaltern in Syllogistic Logic
In syllogistic logic, a subaltern relationship means a universal proposition's truth implies…
Square of Opposition
The Square of Opposition illustrates logical relations between A, E, I, and…
Quantity in Categorical Propositions
Quantity in logic refers to whether a categorical proposition is universal (applies…
Quality of Categorical Propositions
The quality of a categorical proposition determines if it is affirmative or…
Understanding Obversion in Logic
Obversion is a logical operation transforming a categorical proposition into an equivalent…
Obverse in Traditional Logic
The obverse is a logical operation that negates a proposition's predicate and…
E-proposition: Understanding Universal Negatives in Logic
An E-proposition, in traditional logic, is a universal negative categorical statement. It…