Quantity in logic refers to whether a categorical proposition is universal (applies to all members of a class) or particular…
A provability predicate, often denoted as 'Bew', is a fundamental concept in formal logic. It allows us to express within…
Obversion is a logical operation transforming a categorical proposition into an equivalent statement. It involves negating the predicate and changing…
Negation consistency ensures a logical system is free from contradictions, meaning no statement and its negation can both be proven…
Modus Tollens is a fundamental rule of inference in logic. It states that if a conditional statement is true, and…
Modal operators like necessity (◻) and possibility (◊) alter a statement's truth value, indicating whether it must be true or…
The iteration theorem, also known as the Smn theorem, is a fundamental result in computability theory. It states that for…
The 'is' of predication attributes a property or characteristic to a subject, differentiating it from other uses of 'is' like…
The identity function is a fundamental concept in mathematics and computer science. It's a function that takes an input and…
Harmony in logic signifies a balance in introduction and elimination rules for logical connectives. This ensures connectives neither over-promise nor…