?A ? ?H $\frac{\mathrm{E} \supset \sim \mathrm{A}}{\mathrm{E} \supset \sim \mathrm{H}}$ A) DD-Valid

question 297

Multiple Choice

?A ? ?H $\frac{\mathrm{E} \supset \sim \mathrm{A}}{\mathrm{E} \supset \sim \mathrm{H}}$

• A) DD-valid.
• B) MP-valid.
• C) CD-valid.
• D) Invalid.
• E) HS-valid.