Read the statements shown in the chart below. Original Statement “If it’s a garage sale, then it’s a Sunday.” Statement 1 “If it’s not a Sunday, then it’s not a garage sale.” Statement 2 “If it’s not a garage sale, then it’s not a Sunday.” Statement 3 “If it’s a Sunday, then it’s a garage sale.” Which option is correct?
Statement 1 is an inverse, and statement 2 is a contrapositive of the original statement. Statement 2 is a converse, and statement 3 is an inverse of the original statement. Statement 2 is an inverse, and statement 3 is a converse of the original statement. Statement 1 is a converse, and statement 3 is a contrapositive of the original statement.
Statement 1 is contrapositive. Statement 2 is inverse. Statement 3 is converse. #1: X #2: X #3: O #4: X
Thank you so much! Would you mind explaining it a bit, just to help my mind to clarify a bit?
Statement 1 is actually a converse. Statement 2 is an inverse. Statement 3 is a contrapositive. Focus on the "con" part of converse. Now, "con" means negative - so think of the opposite of the original statement (you do not reverse the sentences), or simply "not." There is always a "not" in the sentence when it is defined with a "con-" prefix. Contrapositive is when you reverse the sentences. See the "con" again? That means the sentence will contain a "not" in it; simply take the sentence after the comma and put it first, and the sentence before the comma and put it after.
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