'All tigers are animals' is an example of which type of proposition?

All tigers are animals affirms the whole subject class of the predicate, making it a universal affirmative.

The word all makes the proposition universal in quantity.

The verb are affirms rather than denies, giving it affirmative quality.

Combining universal quantity with affirmative quality yields a universal affirmative proposition.

Every member of the subject class is included in the predicate class.