Contracts one formula in the antecedent down to n occurrences.
Contracts one formula in the antecedent down to n occurrences. Use with care!
A proof.
A formula.
Maximum number of occurrences of form in the antecedent of the end sequent. Defaults to 1, i.e. all occurrences are contracted.
A proof.
A list of occurrences of a Formula in the antecedent of s1.
A proof ending with as many contraction rules as necessary to contract occs into a single occurrence.
This macro rule simulates a series of contractions in the antecedent.