Set Theory Terminology

noun a difference or inconsistency between two things

• The disjunction of the two events led to a complex outcome.
• The disjunction between their opinions caused a lot of tension.
• I can't deal with the disjunction between what he says and what he does.
• The disjunction in her heart was evident as she struggled to make a decision.

noun a class that is a subset of a larger class or category

• In object-oriented programming, a subclass inherits properties and behaviors from a superclass.
• The subclass of this particular model has some additional features.
• I'm in the subclass of people who prefer tea over coffee.
• The new team is considered a subclass of the original group, bringing fresh perspectives.

noun a unary operation or function

adjective relating to or consisting of a single element or component; monadic

• In mathematics, a unary operation is an operation with only one input.
• The unary function takes a single argument and returns a value.
• I only need to pass in one parameter for the unary method.
• His decision was a unary choice with no room for negotiation.

noun Axiom - a statement or proposition that is regarded as being established, accepted, or self-evidently true

• The addition axiom states that for any real numbers a, b, and c, the sum of a and b is equal to the sum of b and a.
• Basically, the addition axiom just means that you can add numbers in any order and still get the same result.
• The addition axiom is like the 'commutative property' of addition - it doesn't matter which order you add the numbers in.
• Think of the addition axiom as a rule that says you can rearrange the numbers you're adding without changing the final answer.