Interrogative logic, also known as erotetic logic, is the formal study of questions and reasoning involving them. It explores the…
A logic focusing on meaning beyond mere truth values, exploring concepts like belief, necessity, and possibility. It distinguishes between logically…
A formal logic and mathematics proof technique. It verifies properties for basic formulas and ensures they are maintained through operations…
An indirect proof, also known as proof by contradiction, involves assuming the opposite of what you want to prove. If…
Inclusive first-order logic is a flexible variant that permits empty domains, unlike standard first-order logic which mandates at least one…
Logical implication connects two statements: if the first (antecedent) is true, the second (consequent) must also be true. It's a…
Generalized quantifiers extend logical and linguistic expression beyond basic 'all' or 'some'. They enable nuanced statements about quantities like 'most',…
A formal system is a set of symbols and rules for manipulating them, used to derive statements or theorems in…
Formal logic is the study of inference based solely on logical form, disregarding the interpretation of terms. It focuses on…
First-order variables are placeholders for individuals within a specific domain in first-order logic. They are fundamental to expressing general statements…