All Mermaids Are Swimmers

question 368

Multiple Choice

All mermaids are swimmers. Therefore, no mermaids are non-swimmers.

• A) Invalid; illicit obversion.
• B) Valid; no fallacy.
• C) Invalid; existential fallacy.
• D) Invalid; illicit contrary.
• E) Invalid; illicit contraposition.

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Definitions:

Hypothetical Thinking

The ability to consider multiple possibilities and outcomes of situations that are not necessarily rooted in current reality.

Formal Operational Stage

The stage in Piaget's theory of cognitive development (beginning around age 12) where individuals develop the ability to think abstractly, reason logically, and plan systematically.

Cognitive Development

The study of how thinking, problem solving, and intelligence change and mature through childhood into adulthood.

Object Permanence

The understanding that objects continue to exist even when they cannot be perceived.