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(L ? ?C) • (D ? ?Q) LDCQ\frac { \sim \mathrm { L } \vee \sim \mathrm { D } } { \mathrm { C } \vee \mathrm { Q } }

Question 11

Multiple Choice

(L ? ?C) • (D ? ?Q) LDCQ\frac { \sim \mathrm { L } \vee \sim \mathrm { D } } { \mathrm { C } \vee \mathrm { Q } }


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

Correct Answer:

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