 Three values, V, L, and F, are introduced, where V is true, L indeterminate, and F false. The traditional semantic domain for sentential logic, true and false, is extended to include “indeterminate”. Based on this extended semantic territory, Peirce presents the semantics of several sentential operators, one unary and the others binary. Modifying Peirce’s presentation slightly to make it more similar to our conventional truth table style without changing content, we present the three operators’ truth tables.