What is the difference between conjunction and disjunction?

Answer 1

In Set Theory and Logic, Conjunction is the use of "AND", and Disjunction is the use of "OR" as Boolean operators.

If we say, Set A "and" Set B, we mean the part of each set that overlaps - all the elements that are in both sets.

Set A "or" Set B refers to any /all elements that are in Set A, or in Set B, or in both.

Venn Diagrams show this clearly.

Here's the Venn diagram for "OR". It shows that an element could be in set A or in set B or in both of them (the center part).

Here's the Venn diagram for "AND".

It shows that an element has to belong to both sets, which is the part in the middle.

(Don't pay any attention to the text that appears below the "and" diagram - it's incorrect. It came with the diagram.)

If your question is about other aspects of conjunction and disjunction, I'm asking that someone else answer it.


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