Pragmatic logics for hypotheses and evidence

The present paper is devoted to present two pragmatic logics and their corresponding intended interpretations according to which an illocutionary act of (scientific) hypothesis-making is justified by a scintilla of evidence. The paper first introduces a general pragmatic frame for assertions, expanded to hypotheses, AH and a hypothetical pragmatic logic for evidence HLP. Both AH and HLP are extensions of the Logic for Pragmatics, L-P. We compare AH and HLP. Then, we underline the expressive and inferential richness of both systems in dealing with hypothetical judgements, especially when based on different, sometimes conflicting, evidence.