  By linking meaning with the acceptability of speech acts, Habermas moves the analysis beyond a narrow focus on the truth-conditional semantics of representation to the social intelligibility of interaction. The complexity of social interaction then allows him to find three basic validity claims potentially at stake in any speech act used for cooperative purposes (i.e., in strong communicative action). His argument relies on three “world relations” that are potentially involved in strongly communicative acts in which a speaker intends to say something to someone about something (TCA 1: 275ff). For example, a constative (fact-stating) speech act (a) expresses an inner world (an intention to communicate a belief); (b) establishes a communicative relation with a hearer (and thus relates to a social world, specifically one in which both persons share a piece of information, and know they do); and (c) attempts to represent the external world. This triadic structure suggests that many speech acts, including non-constatives, involve a set of tacit validity claims: the claim that the speech act is sincere (non-deceptive), is socially appropriate or right, and is factually true (or more broadly: representationally adequate). Conversely, speech acts can be criticized for failing on one or more of these scores. Thus fully successful speech acts, insofar as they involve these three world relations, must satisfy the demands connected with these three basic validity claims (sincerity, rightness, and truth) in order to be acceptable.