Suppose that p is the proposition "All whales are mammals." What is the proposition not-p?

A) No whale is a mammal.
B) Some whales are mammals.
C) All mammals are whales.
D) Some mammals are not whales.
E) Some whales are not mammals.

Proposition Not-p

A logical representation denoting the negation of a proposition p, effectively stating that p is not true.

Whales

Large aquatic mammals belonging to the order Cetacea, which includes various species such as the blue whale and the humpback whale.

Mammals

A class of warm-blooded vertebrate animals that have, in the female, milk-secreting organs for feeding the young.