Two to Go Two to Go "Two to Go" is the 21st episode of season 6 of the television show "Buffy the Vampire Slayer". The name of the episode is a reference to the previous one, which ends with Willow saying "One down" after killing Warren. Despite the death of Tara Maclay, she remains in brief scenes that are part of the opening credits. This episode, and its second part, "Grave", were shown, back-to-back, as a two-hour feature on its original airing in both the United States and UK – consequently, the presentation of this episode on DVD includes credits such as ""Grave"
Word (group theory) product of two words is obtained by concatenation: Even if the two words are reduced, the product may not be. The inverse of a word is obtained by inverting each generator, and switching the order of the elements: The product of a word with its inverse can be reduced to the empty word: You can move a generator from the beginning to the end of a word by conjugation: Given a presentation formula_19 for a group "G", the word problem is the algorithmic problem of deciding, given as input two words in "S", whether they represent the same element of