- law of series
- law of similarity
- law of similarity transformation
- law of similitude
- law of simplification
- law of sines
- law of sines for spherical triangle
- law of small numbers
- law of substitution
- law of symmetry
- law of tangents
- law of tautology
- law of the excluded middle (= law of excluded middle)
- law of the mean
- law of transformation
- law of transitivity of identity
- law of transposition
- law of truly large numbers
- law of universal gravitation
- law of variance
- Lawson cohomology
- Lawson, H.B.Jr.
- Lawson homology
- law “ex falso quodlibet”
- Lax equivalence theorem