Frumspeki

Frumspeki (áður fyrr einnig nefnd háspeki) er undirgrein heimspekinnar sem fjallar um eðli raunveruleikans sem slíks. Frumspekin hefur ávallt verið ein af megingreinum heimspekinnar ásamt þekkingarfræði, rökfræði og siðfræði. Þeir sem leggja stund á frumspeki kallast frumspekingar.

 Undirgreinar frumspekinnar 
 Verufræði
 Trúarheimspeki
 Hugspeki

 Frægir frumspekingar og gagnrýnendur frumspekinnar 
 Aristóteles
 D.M. Armstrong
 Alfred Jules Ayer
 Thomas Aquinas
 George Berkeley
 David Chalmers
 Patricia Churchland
 Paul Churchland
 Donald Davidson René Descartes
 Georg Wilhelm Friedrich Hegel
 Martin Heidegger
 David Hume
 Immanuel Kant
 Saul Kripke
 Gottfried Leibniz
 David Lewis
 John Locke George Edward Moore
 Thomas Nagel
 Parmenídes
 Charles Peirce
 Alvin Plantinga
 Platon
 Plótínos
 Karl Popper
 Hilary Putnam W.V.O. Quine
 Carl Reichenbach
 Richard Rorty
 Bertrand Russell
 Jean-Paul Sartre
 Arthur Schopenhauer
 Wilfrid Sellars
 J.J.C. Smart
 Baruch Spinoza
 Ludwig Wittgenstein

 Tengt efni 
 Altak
 Efnishyggja
 Einhyggja
 Fagurfræði
 Fjölhyggja
 Hluthyggja
 Hughyggja
 Nafnhyggja
 Tvíhyggja
 Verufræði
 Þekkingarfræði

 Heimildir og ítarefni 

 Armstrong, David, Universals: An Opinionated Introduction (Boulder CO: Westview, 1989).
 Baker, Lynne Rudder, Persons and Bodies: A Constitution View (Cambridge: Cambridge University Press, 2000).
 Broad, C.D., The Mind and its Place in Nature (London: Lund Humphries, 1925).
 Kripke, Saul, Naming and Necessity (Cambridge, MA: Harvard University Press, 1972).
 Laurence, Stephen og Cynthia Macdonald (ritstj.), Contemporary Readings in the Foundations of Metaphysics (Oxford: Blackwell, 1998).
 Lewis, David, On the Plurality of Worlds (Oxford: Blackwell, 1986).
 Lowe, E.J., A survey of metaphysics (Oxford: Oxford University Press, 2002).
 Loux, M.J., Metaphysics: A contemporary introduction (2. útg.) (London: Routledge, 2002).
 Loux, M.J. (ritstj.), Metaphysics: Contemporary Readings (London og New York: Routledge, 2001).
 Kim, J. og Ernest Sosa (ritstj.), Metaphysics: An Anthology (London: Blackwell Publishers, 1999).
 Kim, J. og Ernest Sosa (ritstj.), A Companion to Metaphysics (Malden, Mass.: Blackwell Publishers, 2000).
 Plantinga, Alvin, The Nature of Necessity (Oxford: the Clarendon Press, 1979).
 Quine, W.V.O., Word and Object (Cambridge, MA: MIT Press, 1960).
 Quine, W.V.O., From a Logical Point of View (Cambridge, MA: MIT Press, 1961).
 van Fraassen, Bas C., The Empirical Stance (New Haven CT: Yale University Press, 2002).
 van Inwagen, Peter og Dean W. Zimmerman, Metaphysics: The Big Questions (Oxford: Blackwell, 1998).

 Tenglar