A first-order term is recursively constructed from constant symbols, variables and function symbols. An expression formed by applying a predicate symbol to an appropriate number of terms is called an atomic formula, which evaluates to true or false in bivalent logics, given an interpretation.
Season 2 of Expedition Unknown premiered on the Travel Channel in the US on Wednesday, October 7, 2015 and it is set to have twenty one-hour episodes. In the premiere episode, Josh Gates goes to England, Wales, and Scotland in hopes to find the facts and separate them from the myths about legendary King Arthur.
While Sara takes some private time, the Legends follow a lead on the whereabouts of the Earth Totem and find themselves in 1717 on the hunt for Blackbeard's treasure. Current Episode (aired 19 Feb. 2018)