Word.ws English Dictionary

projective lines

projective lines is the plural of projective line.

Meaning of projective line

Noun

projective line (plural projective lines)

  1. (projective geometry) A line that includes a point at infinity; a line in a projective space; a projective space of dimension 1.
    • A projective line in P²( R ), consists of the projective points defined by coplanar directions in R ³.
      In other words, just as the points in P²( R ) correspond to one-dimensional subspaces in R ³, the projective lines correspond to two-dimensional subspaces in R ³.2007, Unnamed translator, Ana Irene Ramírez Galarza, José Seade, Introduction to Classical Geometries, [2002, Introducciòn a la Geometria Avanzada], Springer (Birkhäuser), page 97, In P2( R ), the...
    Synonyms:
    projective straight line

Questions about projective lines

What is projective lines the plural of?
Projective lines is the plural of projective line.

Words near projective lines in the dictionary

  1. projective Hilbert space
  2. projective Hilbert spaces
  3. projective limit
  4. projective limits
  5. projective line
  6. projective lines
  7. projective module
  8. projective modules
  9. projective plane
  10. projective planes
  11. projective space

Source and license

Adapted from Wiktionary: projective lines (page history and authors); projective line (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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