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TY - ABST
AU - Mühlhölzer, Felix
TI - WITTGENSTEIN AND THE REGULAR HEPTAGON
JO - Grazer Philosophische Studien
PY - 2001-01-01T00:00:00///
VL - 62
IS - 1
SP - 215
EP - 247
N2 - The later Wittgenstein holds that the sole function of mathematical propositions is to determine the concepts they invoke. In the paper this view is discussed by means of a single example: Wittgenstein's investigation of the concept of a regular heptagon as used in Euclidean geometry (i.e., the Euclidean constructiongame with rulerand compass) andinCartesian analytic geometry. Going on from some well-known passages in Wittgenstein's *Lectures on the Foundations of Mathematics*, and completing these passages, it is shown that Wittgenstein'sview makes perfectly good sense and can be very well defended.
UR - http://www.ingentaconnect.com/content/rodopi/gps/2001/00000062/00000001/art00010
ER -