The correctness of programs is partly defined in terms of proper performance of the speech acts. Answers should be truthful and responsive, and promises should be kept. Sentences of logic expressing these forms of correctness can be generated automatically from the form of the program.

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

• The correctness conditions for an illocutionary act involve the state of the program and its inputs and outputs. The correctness conditions for a perlocutionary act depends also on events in the world.claim0.818
  Distinction between illocutionary and perlocutionary correctness.
• We expect to be able to generate the intrinsic correctness sentences automatically from the text of the program.claim0.803
  Claim about automatic generation of logical correctness conditions.
• Proving that a program meets accomplishment specifications must be based on assumptions about the world, the information it makes available to the program and the effects of the program's actions as well as on facts about the program itself.claim0.784
  Claim about the nature of accomplishment verification.
• Stating and proving that answers to questions and other statements are responsive seems to require a substantially larger logical apparatus than merely proving that the answers are truthful.claim0.780
  Claim about the difficulty of responsiveness verification.
• Conventional programming is precise only about how, not what. It is not only not right, it is not even wrong.concept0.776
• No special theory of programming is required to prove properties of programs if they are expressed as logical sentences.claim0.768
  Key claim of the Algol 48/50 and Elephant approach.
• We hope that programs using performatives will be easier to write, understand, debug, modify and (above all) verify.hypothesis0.766
  Hope expressed about the benefits of Elephant-style programs.
• Abstract performatives include purely internal actions such as commitments not necessarily expressed in output, but on whose fulfillment the correctness of the program depends.quote0.764
  Definition of abstract performative, a core invention of the paper.