Category:Porism

Po"rism, n. Etym: [gr. porisme.]

1. (geom.)

Defn: a proposition affirming the possibility of finding such Conditions as will render a certain determinate problem indeterminate Or capable of innumerable solutions. Playfair.

2. (gr. Geom.)

Defn: a corollary. Brande & c.

Note: three books of porisms of euclid have been lost, but several Attempts to determine the nature of these propositions and to restore Them have been made by modern geometers.