Mathematical Crossword

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Across
  1. 6. Indicates the opposite, usually employing the word not.
  2. 7. Switching the hypothesis and conclusion of a conditional statement and negating both.
  3. 8. refers to the opposite of another operation.
  4. 9. is a method of reasoning that involves a series of statements, each of which must be true if the statement before it is true.
  5. 10. statement is defined to be true whenever both parts have the same truth value; operator is denoted by a double-headed arrow.
  6. 11. statement, symbolized by p q, is an if-then statement in which p is a hypothesis and q is a conclusion.
Down
  1. 1. is a compound statement formed by joining two statements with the connector OR.
  2. 2. is a method of proof in polemics, logic and mathematics.
  3. 3. is a statement that is either true or false.
  4. 4. Switching the hypothesis and conclusion of a conditional statement.
  5. 5. is a compound statement (premise and conclusion) that always produces truth.
  6. 7. is a compound statement formed by joining two statements with the connector AND.