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Bootstrap (formerly Twitter Bootstrap) is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains HTML , CSS and (optionally) JavaScript -based design templates for typography , forms , buttons , navigation , and other interface components.
Modal windows are sometimes called heavy windows or modal dialogs because they often display a dialog box. User interfaces typically use modal windows to command user awareness and to display emergency states, though interaction designers argue they are ineffective for that use. [1] Modal windows are prone to mode errors. [1] [2] [3]
Two notable and widely used examples are Bootstrap and Foundation. ... tabs, slideshow or modal windows ... CC-BY 2.0 fixed, elastic, fluid ...
In 2009, the W3C allowed the XHTML 2.0 Working Group's charter to expire and decided not to renew it. [ 11 ] The Mozilla Foundation and Opera Software presented a position paper at a World Wide Web Consortium workshop in June 2004, [ 12 ] focusing on developing technologies that are backward-compatible with existing browsers, [ 13 ] including ...
Most modal logics commonly used nowadays (in terms of having philosophical motivations), e.g. C. I. Lewis's S4 and S5, are normal (and hence are extensions of K). However a number of deontic and epistemic logics, for example, are non-normal, often because they give up the Kripke schema. Every normal modal logic is regular and hence classical.
In modal logic, modal collapse is the condition in which every true statement is necessarily true, and vice versa; that is to say, there are no contingent truths, or to put it another way, that "everything exists necessarily" [1] [2] (and likewise if something does not exist, it cannot exist).
ISBN 0-521-68229-0. A thorough introduction to modal logic, with coverage of various derivation systems and a distinctive approach to the use of diagrams in aiding comprehension. Girle, Rod (2000) Modal Logics and Philosophy. Acumen (UK). ISBN 0-7735-2139-9. Proof by refutation trees. A good introduction to the varied interpretations of modal ...
Modal realists, by contrast, state that possibility is an irreducible aspect of reality besides actuality. [2] The most well-known version of modal realism is due to David Lewis, who holds that a plurality of possible worlds exist beside the actual world. [3] Every object just belongs to one world but it has counterparts in other worlds.