Could There Be Such a Thing as an Invalid Premise

question 50

Multiple Choice

Could there be such a thing as an invalid premise?

• A)No, since validity is a property of arguments, not of propositions.
• B)No, since every proposition by itself is considered to be valid.
• C)Yes, since the premise might be such that no conclusion could ever validly follow from it.
• D)Yes, since the premise might not be a properly formed categorical proposition.
• E)Yes, since the premise might be irrelevant to the conclusion.

---

Definitions:

Triangle

A polygon with three edges and three vertices, one of the basic shapes in geometry.

Trapezoid

A four-sided flat shape with straight sides, where at least one pair of opposite sides are parallel.

Mandibular Ramus

The vertical part of the lower jawbone that connects to the mandibular body and supports the teeth.

Mastication

The act of grinding food with teeth before it is swallowed and digested.