rule of replacement
inference rule that may be applied to only a particular segment of an expression
transposition
rule in propositional logic allowing an antecedent and consequent to be transposed if they are also both negated
associativity
property of binary operations allowing sequences of operations to be regrouped without changing their value
double negative elimination
inference rule that allows to infer a formula without the relevant negations when they immediately follows in an original formula
distributive property
property involving two mathematical operations