Elephant 2000 programs can perform some kinds of speech acts as genuinely as humans, including genuine promises.

Entities in the same semantic neighborhood but without a typed relation to this one — candidates for new edges or unrecognized duplicates.

• Human use of speech acts involves intelligence. Elephant 2000 is on the borderline of AI, but the article emphasizes the Elephant usages that do not require AI.claim0.856
  Seventh abstract claim.
• Elephant programs that interact non-trivially with the outside world can have both input-output specifications, relating the programs inputs and outputs, and accomplishment specifications concerning what the program accomplishes in the world. These concepts are respectively generalizations of the philosophers' illocutionary and perlocutionary speech acts.claim0.833
  Fifth abstract claim.
• Elephant speech acts are a step above strings, because the higher levels of the speech acts have a meaning independent of the application program.claim0.819
  Advantage of speech acts over plain strings.
• Elephant programs themselves can be represented as sentences of logic. Their extensional properties follow from this representation without an intervening theory of programming or anything like Hoare axioms.claim0.804
  Fourth abstract claim.
• Programs that engage in commercial transactions assume obligations on behalf of their owners in exchange for obligations assumed by other entities. It may be part of the specifications of an Elephant 2000 programs that these obligations are exchanged as intended, and this too can be expressed by a logical sentence.claim0.787
  Sixth abstract claim.
• It seems likely that the simple cases will be most useful in the initial applications of Elephant 2000 and similar languages.hypothesis0.787
  Prediction about initial usage.
• The Elephant programmer in verifying his program need not show that the promise will be fulfilled because it was made. It is enough that he show it will be fulfilled.claim0.785
  Rejection of one of Dorschel's conditions for happy performance.
• Many kinds of human speech act are relative to social institutions that change, and the exchange of speech acts among computer programs will often involve the design of new institutions prescribing the effects of speech acts.claim0.764
  Claim about designing institutions for program speech acts.