Question: 4. (5+5 points) Let 4,4 S(P). Give derivations (Using Equational Layout)) of the following formal theorems: (a) F() = (-6 V4) (b) 4, ( 48)

4. (5+5 points) Let 4,4 S(P). Give derivations (Using Equational Layout)) of the following formal theorems: (a) F() = (-6 V4) (b) 4, ( 48) (Modus Ponens (MP)). Then apply MP to derive the converse of the Deduction (meta) Theorem: if I F( 44), then 1,874. 4. (5+5 points) Let 4,4 S(P). Give derivations (Using Equational Layout)) of the following formal theorems: (a) F() = (-6 V4) (b) 4, ( 48) (Modus Ponens (MP)). Then apply MP to derive the converse of the Deduction (meta) Theorem: if I F( 44), then 1,874
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