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

Question 312

Multiple Choice

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


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

Correct Answer:

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