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Watch this video lesson to learn how to identify conjunctions and disjunctions. Also learn the connectors that are used with each. Learn how you can use them to make statements.


What Are Conjunctions and Disjunctions in Math? Conjunctions and disjunctions are types of compound propositions found in propositional logic. A conjunction is true only if both of its component propositions are true.


Disjunction. In logic, a disjunction is a compound sentence formed by using the word or to join two simple sentences. The symbol for this is ν. (whenever you see ν read 'or') When two simple sentences, p and q, are joined in a disjunction statement, the disjunction is expressed symbolically as p ν q.


Truth tables – negation, conjunction, disjunction (“not”, “and”, “or”) Truth tables are a way of analyzing how the validity of statements (called propositions) behave when you use a logical “or”, or a logical “and” to combine them.


Check your understanding of conjunctions and disjunctions in math with an interactive quiz and printable worksheet. You can access these tools with...


Conjunction is a truth-functional connective similar to "and" in English and is represented in symbolic logic with the dot " ". Ordinary language definition of the dot: a connective forming compound propositions which are true only in the case when both of the propositions joined by it are true.


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Inequality conjunctions and disjunctions Consider the inequality conjunction: – 5 < x ≤ 7 . This is equivalent to –5 < x and x ≤ 7 where the “and” implies an intersection (overlap) of the answers from each part. Example 1: Draw the values of x given by ...


With a conjunction, both statements must be true for the conjunction to be true; but with a disjunction, both statements must be false for the disjunction to be false. One way to remember this is with the following mnemonic: 'And’ points up to the sand on top of the beach, while ‘or’ points down to the ore deep in the ground.