WFF-DIST-EXPAND : WFFOPWFF-DIST-EXPAND is a wff operation.
Apply distributivity laws to a formula in the expanding direction:
A and (B or C) --> (A and B) or (A and C)
A or (B and C) --> (A or B) and (A or C)
(B or C) and A --> (B and A) or (C and A)
(B and C) or A --> (B or A) and (C or A).
The calling scheme for WFF-DIST-EXPAND is:
The result is of type GWFF.
The arguments have the following meaning:
GWFF : Wff
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