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SUPPLEMENTARY MATERIAL (USERS' MATHBOXES)
Mathbox for Scott Fenton
Geometry in the Euclidean space
Properties relating betweenness and congruence
cfs
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df-colinear
Metamath Proof Explorer
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Syntax definition
cfs
Description:
Declare the syntax for the five segment predicate.
Ref
Expression
Assertion
cfs
class
FiveSeg