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Definition df-li 25243
 Description: Definition of the line xy. It also defines a degenerate line. Definition 4 of [AitkenIBG] p. 2. (For my private use only. Don't use.) (Contributed by FL, 2-Apr-2016.)
Assertion
Ref Expression
df-li Ig PPoints PPoints PLines
Distinct variable group:   ,,,

Detailed syntax breakdown of Definition df-li
StepHypRef Expression
1 cline 25242 . 2
2 vf . . 3
3 cig 25226 . . 3 Ig
4 vx . . . 4
5 vy . . . 4
62cv 1618 . . . . 5
7 cpoints 25222 . . . . 5 PPoints
86, 7cfv 4592 . . . 4 PPoints
94cv 1618 . . . . . 6
105cv 1618 . . . . . 6
119, 10wne 2412 . . . . 5
12 vl . . . . . . . 8
134, 12wel 1622 . . . . . . 7
145, 12wel 1622 . . . . . . 7
1513, 14wa 360 . . . . . 6
16 cplines 25224 . . . . . . 7 PLines
176, 16cfv 4592 . . . . . 6 PLines
1815, 12, 17crio 6181 . . . . 5 PLines
199csn 3544 . . . . 5
2011, 18, 19cif 3470 . . . 4 PLines
214, 5, 8, 8, 20cmpt2 5712 . . 3 PPoints PPoints PLines
222, 3, 21cmpt 3974 . 2 Ig PPoints PPoints PLines
231, 22wceq 1619 1 Ig PPoints PPoints PLines
 Colors of variables: wff set class This definition is referenced by:  linevala2  25244
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