?J ? C $\frac { \mathrm { C } \supset \sim \mathrm { T } } { \sim \mathrm { J } \supset \sim \mathrm { T } }$
A) DD-valid.
B) MP-valid.
C) CD-valid.
D) Invalid.
E) HS-valid.

Question

Quizplus · Accepted Answer

The Answer of ?J ? C $\frac { \mathrm { C } \supset \sim \mathrm { T } } { \sim \mathrm { J } \supset \sim \mathrm { T } }$
A) DD-valid.
B) MP-valid.
C) CD-valid.
D) Invalid.
E) HS-valid.

?J ? C C⊃∼T∼J⊃∼T\frac { \mathrm { C } \supset \sim \mathrm { T } } { \sim \mathrm { J } \supset \sim \mathrm { T } }∼J⊃∼TC⊃∼T​

?J ? C $\frac { \mathrm { C } \supset \sim \mathrm { T } } { \sim \mathrm { J } \supset \sim \mathrm { T } }$