Metamath Proof Explorer


Definition df-lines2

Description: Define the set of all lines. Definition 6.14, part 2 of Schwabhauser p. 45. See ellines for membership. (Contributed by Scott Fenton, 28-Oct-2013)

Ref Expression
Assertion df-lines2 LinesEE=ranLine

Detailed syntax breakdown

Step Hyp Ref Expression
0 clines2 classLinesEE
1 cline2 classLine
2 1 crn classranLine
3 0 2 wceq wffLinesEE=ranLine