Chapter 9, Level 1 Self Quiz: EIII

. Determine whether the translation of the following argument is correct.

Some CEOs are not people blindly devoted to profits. Some women are CEOs. Therefore, some people blindly devoted to profits are not women. ( C, B, W )

1. ( x )( Cx ⊃ ~ Bx )
2. ( ∃x )( Wx • Cx )        / ( ∃x )( Bx • ~ Wx )

. Determine whether the truth table using the finite universe method correctly shows that it is invalid.

 The column heads of a truth table are B a, C a, W a, C a dot tilde B a, W a dot C a, and slash B a dot tilde W a. The table entries are as follows: Row 1: F, T, T, T, T T, T, F F. The first entries in the fourth and sixth columns, the entry in the fifth column are boxed, respectively. The entries in the sixth column are ticked.

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