Who Invented Locutionary Act?

The term locutionary act was introduced by British philosopher J. L. Austin in his 1962 book, "How to Do Things With Words." American philosopher John Searle

later replaced Austin's concept of a locutionary act with what Searle called the propositional act—the act of expressing a proposition.

Who proposed Illocutionary acts?

The terms illocutionary act and illocutionary force were introduced by British linguistic philosopher John Austin in 1962's "How to Do Things With Words, and for some scholars, the term illocutionary act is virtually synonymous with speech act.

Who created the speech act theory?

The speech act theory was introduced by Oxford philosopher J.L. Austin in How to Do Things With Words and further developed by American philosopher J.R. Searle. It considers the degree to which utterances are said to perform locutionary acts, illocutionary acts, and/or perlocutionary acts.