The various slides have URLsĪlex> "Modal logic is a collection of formal systems originallyĭeveloped and still widely used to represent statements about necessity Such a specification for explaining the system to people and answeringīe helpful for an overview of the issues.
#MODAL LOGIC PLAYGROUND HOW TO#
Logicwould take an enormous amount of effort (3) Nobody knows how to use Nobody could understand it (2) Trying to do anything useful with the Unfortunately, (1) The specification would be so enormous that Graphs) is sufficient for specifying every digital computer that has everīeen built and the semantics of every program that runs on any suchĬomputer. In one sense, classical first-order logic (Peirce's Beta Logic versus that logic? There can only be one. How can it be, that people who have gone to universities speak of this Then slides 6 to 20 haveĬartoons and diagrams that illustrate the issues.
Researchers, with a one-line summary of each. For a short overview, see slide 5 for a list of 18 Lexicography, and artificial intelligence, see "Natural Logic:įor a 3-hour tutorial. Quotations by and about researchers in logic, philosophy, linguistics, See the references in "Five questions on epistemic Of using logic to represent and reason about the semantics of natural Logician who has participated in various conferences that deal with issues Language which resists any augmentation by mathematicsĪgree, and I believe that Dana Scott would also agree. These are configured by setting the guidesĪttribute.Long time! But the really immense swamp critter. String, there are several more refined overlays available for increasing the Indentation Guidesīesides just the indentation guide created by setting guides in the options It is loaded, instead of waiting for a user interaction. The init attribute may be set to "now" in order to check the proof as soon as System is hardegreeMPL, and the available "world theory" system is Modal logic systems are: hardegreeL hardegreeK hardegreeT hardegreeB hardegreeD hardegree4 and hardegree5. Systems are: secondOrder and PolySecondOrder. The available set theory systems are:ĮlementarySetTheory and separativeSetTheory. The availableįirst-order systems are: firstOrder montagueQC magnusQL thomasBolducAndZachFOL thomasBolducAndZachFOL2019 thomasBolducAndZachFOLPlus2019 LogicBookPD LogicBookPDPlus gamutND hausmanPL howardSnyderPL ichikawaJenkinsQL hardegreePL goldfarbAltND goldfarbNDPlus and goldfarbAltNDPlus. GamutPND gamutPNDPlus tomassiPL and hardegreeSL. The available propositional systems are: prop montagueSC LogicBookSD LogicBookSDPlus hausmanSL howardSnyderSL ichikawaJenkinsSL hausmanSL magnusSL magnusSLPlus thomasBolducAndZachTFL thomasBolducAndZachTFL2019 gamutMPND gamutIPND, There are, correspondingly, more options available: Like the other exercises, derivations allow for points=VALUE andĭerivations, however, currently have a little more depth than the other types Hardegree-style systems based on Hardegree's Modal Logic Lemmon-style system based on Tomassi's Logic Lemmon-style systems based on Goldfarb's Deductive Logic. Systems based on Hausman's Logic and Philosophy. Systems based on Howard-Snyder's The Power of Logic. GamutND,įitch-style systems based on the systems used in Gamut's Introduction to Logic, including minimal and intuitionistic fragments of propositional logic. ZachFOL2019,įitch-style systems based on the Calgary Remix of Forall x.įitch-style systems based on the Ichikawa-Jenkins Remix of Forall x. LogicBookSD, LogicBookSDPlus, LogicBookPD,įitch style systems based on Bergmann Moore and Nelson's Logic Book.įitch-style systems based on Magnus's Forall x. Montague-Style systems, the first two of which are used in the Carnap book.
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