Assertion: straight line | /r/HasProperty | parallel
Facets:
value: to the straight line
type: OTHER
value: if
type: DEGREE
Source sentences:
text: Two straight lines are parallel if and only if they have the same slope.
text: In definition 15 he introduces parallel lines in this way; "Straight lines which have the same direction, but are not parts of the same straight line, are called parallel lines.
text: Let the straight lines L 1 , L 2 be parallel.
text: Then the two straight lines are parallel.
text: Therefore the straight line L 1 is parallel to the straight line L 2 .
text: Therefore two straight lines are parallel if and only if they have the same slope.
text: In geometry, parallel lines are lines in a plane which do not meet; that is, two straight lines in a plane that do not intersect at any point are said to be parallel.
text: Straight lines will be parallel if they have the same slope.