If-Then Form
Tenth graders are in Geometry.
"If you are a tenth grader, then you are in Geometry."
If the child is 5 years old, then they are in kindergarden.
"If a child is in kindergarden, then they are 5 years old"
If you like tennis, then you play on the tennis team.
"If you do not play on the tennis team, then you do not like tennis"
If x is odd, then 3x is odd.
"If x is not odd, then 3x is not odd"
Puppies are small.
"If it is a puppy, then it is small"
If there is snow on the ground, flowers are not in bloom.
"If flowers are not in bloom, then there is snowon the ground."
If x is odd, then 2x is even.
"If 2x is not even, then x is not odd."
If you like hockey, then you go to the hockey game.
"If you do not like hockey, then you do not go to the game."
A line contains at least 2 points.
"If it is a line then it contains at least 2 points."
If 2 planes intersect, then their intersection is a line.
"If their intersection is a line, then the 2 planes intersect."
If a point lies on 2 lines, then it is at the intersection.
"If a point is not at the intersection, then it does not lie on 2 lines."
If you visited Springfield, then you've been to Illinois.
"If you have not visited Springfield, then you have not been to Illinois."
A plane contains at least 3 collinear points
"If it is a plane, then it contains 3 collinear points."
If 2 points lie on a plane, then the line containing them lies in the plane.
"if the line containing 2 points lies in a plane, then they lie on the plane"
If you like purple, then you'll love Barney.
"If you do not love Barney, then you do not like purple."
If measure of angle p is 90 degrees, then it is a right angle.
"If the measure of angle p is not 90 degrees, then it is not a right angle."