?E ? ?H $\frac { \sim \mathrm { H } } { \sim \mathrm { E } }$
A) Invalid
B) CD-valid.
C) DD-valid.
D) CD-invalid.
E) MP-valid.

Name: ?E ? ?H $\frac { \sim \mathrm { H } } { \sim \mathrm { E } }$ A) Invalid B) CD-valid. C) DD-valid. D) CD-invalid. E) MP-valid.
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The Answer of ?E ? ?H $\frac { \sim \mathrm { H } } { \sim \mathrm { E } }$
A) Invalid
B) CD-valid.
C) DD-valid.
D) CD-invalid.
E) MP-valid.

?E ? ?H ∼H∼E\frac { \sim \mathrm { H } } { \sim \mathrm { E } }∼E∼H​

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