Deductive Reasoning

Chan is older than Pedro
Pedro is older than Sarah

Valerie is older than Greg
Dan is older than Greg

Polygon G has more than 6 sides
Polygon K has more than 6 sides

There are three sisters
Two of them are athletes
And two of them like tacos

Can you be sure that both
Of the athletes like tacos?
At least one of the athletic sisters like tacos

 

If Today Is Tuesday

If today is Tuesday, then tomorrow is Wednesday
Today is Tuesday
Therefore, tomorrow is Wednesday.

If a figure is a triangle, then it is a polygon
This figure is not a polygon.
Therefore, this figure is not a triangle

It is Tuesday and it is April
Therefore, it is Tuesday

It is a square or it is a triangle
It is not a square
Therefore, it is a triangle