Elms and maples are deciduous trees.
A) (x)[(Ex ∨Mx) ⊃ (Dx ⊃ Tx)]
B) (∃x)[(Ex ∨ Mx) ⊃ (Tx • Dx)]
C) (x)[(Ex • Mx) ⊃ (Tx • Dx)]
D) (x)[(Ex ∨Mx) ⊃(Tx • Dx)] .
E) (∃x)[(Ex ∨ Mx) ⊃ (Tx • Dx)].

Question

Quizplus · Accepted Answer

Option D expresses that for all trees, if they are either elms or maples, then they are both deciduous and trees. This accurately reflects the given information that elms and maples are deciduous trees. The other options either include unnecessary existential quantifiers (B and E) or state that elms and maples must be both elms and maples to be deciduous (C), which contradicts the given information.

Elms and Maples Are Deciduous Trees