P ? G A) CD-Valid

question 326

Multiple Choice

P ? G $\frac { ( \mathrm { H } \supset \sim \mathrm { P } ) \cdot ( \mathrm { C } \supset \sim \mathrm { G } ) } { \sim \mathrm { H } \vee \sim \mathrm { C } }$

• A) CD-valid.
• B) Invalid.
• C) MT-valid.
• D) DD-valid.
• E) CD-invalid.