1. (∀X)(Cx ⊃ Dx)

question 123

Multiple Choice

1. (∀x) (Cx ⊃ Dx)
2. (∀x) (Ex ⊃ ∼Dx)
-Which of the following propositions is an immediate (one-step) consequence in M of the given premises?

• A) Ca ⊃ Db
• B) Ex ⊃ ∼Dc
• C) Ex
• D) Es ⊃ ∼Ds
• E) Cx ⊃ Ds

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Definitions:

Fossil Record

The collection of preserved remains or traces of animals, plants, and other organisms from the past.

Grasses

A family of plants (Poaceae) that includes cereals, bamboos, and the grasses of natural grassland and cultivated lawns and pastures.

Herbivores

Organisms that eat primarily plants or plant material.

Carbon Dioxide

A colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air and is absorbed by plants in photosynthesis.