Infallibilism is the claim that knowledge requires that one satisfies some infallibility condition. I spell out three distinct such conditions: epistemic, evidential and modal infallibility. Epistemic infallibility turns out to be simply a consequence of epistemic closure, and is not infallibilist in any relevant sense. Evidential infallibilism i s unwarranted but it is not an satisfactory char...

We present a logic for belief revision in which revision of a theory by a sentence is represented using a conditional connective. The conditional is not primitive, but rather defined using two unary modal operators. Our approach captures and extends the classic AGM model without relying on the Limit Assumption. Reasoning about counterfactual or hypothetical situations is also crucial for AI. Ex...

The new …eld of judgment aggregation aims to …nd collective judgments on logically interconnected propositions. Recent impossibility results establish limitations on the possibility to vote independently on the propositions. I show that, fortunately, the impossibility results do not apply to a wide class of realistic agendas once propositions like “if a then b” are adequately modelled, namely a...

There are many kinds of computer system that are intended to support users in performing an exploration among a range of possible results. However, such tools often allow only narrow progress through the result space, forcing users to trade off the breadth of search they would like to pursue against the time and effort required. The aim of the ‘subjunctive interface’ concept is to make broader ...

Documents in scientific newspapers are often marked by attitudes and opinions of the author and/or other persons, who contribute with objective and subjective statements and arguments as well. In this respect, the attitude is often accomplished by a linguistic modality. As in languages like english, french and german, the modality is expressed by special verbs like can, must, may, etc. and the ...

Juan Comesana considers some recent proposals regarding the relation between knowledge and subjunctive conditionals, including those by Dretske and Nozick recommending a " sensitivity " condition on knowledge, and by Sosa recommending a " safety " condition. Comesana raises problems for each of the positions he considers, and at the end of the paper he expresses pessimism about the prospects fo...

purpose :   the present study investigated the psychometric properties of a malaysian adapted brunel mood scale.   methods:   the questionnaire was administered to 355 young sport athletes with a mean age of 14.69 + 1.70 years. confirmatory factor analysis (cfa) and cronbach's alpha were used to determine the factorial validity and the internal consistency of the questionnaire respectively. res...