Boolean arithmetic. Boolean ($\mathbb{B}$) is the set containing only TRUE ($\top$) and FALSE ($\bot$). This theory contains operations that are defined to act on Boolean elements: implication ($\Rightarrow$, $\Leftrightarrow$), negation ($\neg$), conjunction ($\land$), and disjunction ($\lor$). The quantification operations, universal ($\forall$) and existential ($\exists$), are also defined in this theory because these operate on multiple instances of Boolean values.
import proveit
%theory