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A lattice embedding is a one-to-one lattice homomorphism.

A point at the intersection of two or more grid lines in a point lattice.

The least common denominator of a collection of fractions (p_1)/(q_1),...,(p_n)/(q_n) is the least common multiple LCM(q_1,...,q_n) of their denominators.

The Lebesgue identity is the algebraic identity (Nagell 1951, pp. 194-195).

The Lebombo bone is the oldest known mathematical artifact. It dates from 35000 BC and consists of 29 distinct notches that were deliberately cut into a baboon's fibula. It ...

A formula which counts the number of fixed points for a topological transformation.

A three-dimensional coordinate system in which the axes do not satisfy the right-hand rule.

For a group G, consider a subgroup H with elements h_i and an element x of G not in H, then xh_i for i=1, 2, ... constitute the left coset of the subgroup H with respect to x.

Any of the three standard forms in which an elliptic integral can be expressed.

The Leonine triangle DeltaX_AX_BX_C (a term coined here for the first time), is the Cevian triangle of Kimberling center X_(598). It is the polar triangle of the Lemoine ...