Argument A A stop sign has the shape of a pentagon. Therefore, a stop sign has five sides.
Argument A is:
Argument B
Since Iowa has a larger population than Florida, and Florida has a population of only 3,000, it must be the case that Iowa has a population greater than 3,000.
Argument B is:
Argument C
Since x minus y equals 8, and y equals 7, it follows that x equals 15.
Argument C is:
Argument D
Some mammals are lions. Some mammals have manes. Therefore, some mammals are lions with manes.
Argument D is: