Which Rule Is Used in the Following Inference $\frac { ( \mathrm { D } \cdot \mathrm { F } ) \cdot ( \mathrm { K } \vee \mathrm { L } ) } { \mathrm { K } \vee \mathrm { L } }$

question 83

Multiple Choice

Which rule is used in the following inference? $\frac { ( \mathrm { D } \cdot \mathrm { F } ) \cdot ( \mathrm { K } \vee \mathrm { L } ) } { \mathrm { K } \vee \mathrm { L } }$

• A)Simp
• B)Conj
• C)Add
• D)DS
• E)HS

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