Conjunctions and disjunctions - Logic

Conjunctions and disjunctions

Lessons

Notes:
Notes:

A conjunction is a compound statement that is made by combining two or more statements with the word "and". If any of the statements is false, then the entire conjunction is false. If all statements are true, then the conjunction is true. We can replace the word "and" with the symbol ˄.

A disjunction is a compound statement that is made by combining two or more statements with the word "or". If any of the statements is true, then the entire disjunction is true. If all statements are false, then the disjunction is false. We can replace the word "or" with the symbol ˅.

  • Intro Lesson
    Conjunctions and Disjunctions Overview:
  • 1.
    Conjunctions

    Determine the truth value of the following conjunctions:

  • 2.
    The symbols represent the following statements:

    pp: A year has 52 weeks
    qq: December is a summer month
    rr: A kilogram is 1000 grams

    Find the truth value of the following:
  • 3.
    Disjunctions

    Determine the truth value of the following disjunctions:

  • 4.
    The symbols represent the following statements:

    pp: A week has 5 days
    qq: A day has 24 hours
    rr: An hour has 60 seconds

    Find the truth value of the following:
  • 5.
    Advanced Questions on Conjunctions and Disjunctions

    Let pp and qq be statement. Fill in the blanks:

Teacher pug

Conjunctions and disjunctions

Don't just watch, practice makes perfect.

We have over 160 practice questions in Geometry for you to master.