Abstract
The concept of left (resp. right) unar groupoid is extended to introduce left (resp. right) unar LA-semigroup as new subclasses of LA-semigroup. These subclasses are enumerated up to order 6 and some basic relations of these classes with other known subclasses of LA-semigroup and with other relevant algebraic structures are investigated. Furthermore, a variety of examples and counterexamples are provided using the latest computational techniques of GAP, Mace-4 and Prover-9.

Muhammad Rashad, Imtiaz Ahmad. (2018) A Note on UNAR LA-Semigroup, Punjab University Journal of Mathematics, Volume 50, Issue 3.
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