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TPHOL
2006
IEEE
14 years 1 months ago
Metamath
Norman D. Megill
TPHOL
2006
IEEE
14 years 1 months ago
Otter/Ivy
Abstract. We compare the styles of several proof assistants for mathematics. We present Pythagoras’ proof of the irrationality of √ 2 both informal and formalized in (1) HOL, (...
Michael Beeson, William McCune