Every at most four element algebra has a Mal'cev theory for permutability
Every group is a maximal subgroup of the semigroup of relations
Exchange properties and basis properties for closure operators
Exchange property and t-independence
Exchangeable partial groupoids I
Exchangeable partial groupoids II
Existence and uniqueness of -representations of algebras
Existence of monomorphisms of partial unary algebras
Exponentiality in categories of partial algebras.
Exponentiation of relational systems with respect to strong homomorphisms.
Exponentiation without associativity
Extending a partial equivalence to a congruence and relative embeddings in universal algebras
Extension of -dimensional Euclidean vector space over to pseudo-fuzzy vector space over .
Extension of topological homology theories to partially orderd sets.
Extension theories for monoids.
Extension-closure and attainability for varieties of algebras with involution
Extensive varieties
Factorable congruences and factorable congruence blocks on powers of a finite algebra
Factorable congruences and strict refinement.
Factorization and non-algebraic categories