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An algebra $\mathbf A = \langle A, \to, 0 \rangle$, where $\to$ is binary and $0$ is a constant, is called an implication zroupoid ($\mathcal I$-zroupoid, for short) if $\mathbf A$ satisfies the identities: $(x \to y) \to z \approx ((z' \to…

Logic · Mathematics 2017-10-31 Juan M. Cornejo , Hanamantagouda P. Sankappanavar

An algebra $\mathbf A = \langle A, \to, 0 \rangle$, where $\to$ is binary and $0$ is a constant, is called an implication zroupoid ($\mathcal I$-zroupoid, for short) if $\mathbf A$ satisfies the identities: $(x \to y) \to z \approx [(z' \to…

Logic · Mathematics 2017-10-31 Juan M. Cornejo , Hanamantagouda P. Sankappanavar

An algebra $A = \langle A, \to, 0 \rangle$, where $\to$ is binary and $0$ is a constant, is called an implication zroupoid (I-zroupoid, for short) if A satisfies the identities: $(x \to y) \to z \approx ((z' \to x) \to (y \to z)')'$, where…

Logic · Mathematics 2020-01-20 Juan M. Cornejo , Hanamantagouda P. Sankappanavar

It is a well known fact that Boolean algebras can be defined using only implication and a constant. In 2012, this result was extended to De Morgan algebras in [8] which led Sankappanavar to introduce, and investigate, the variety I of…

Logic · Mathematics 2015-09-30 Juan M. Cornejo , Hanamantagouda P. Sankappanavar

A quasigroup identity is of Bol-Moufang type if two of its three variables occur once on each side, the third variable occurs twice on each side, the order in which the variables appear on both sides is the same, and the only binary…

Group Theory · Mathematics 2007-05-23 J. D. Phillips , Petr Vojtěchovský

In 2012, the second author introduced and studied the variety $\mathcal{I}$ of implication zroupoids that generalize De Morgan algebras and $\lor$-semilattices with $0$. An algebra $\mathbf A = \langle A, \to, 0 \rangle$, where $\to$ is…

Logic · Mathematics 2020-09-18 Juan M. Cornejo , Hanamantagouda P. Sankappanavar

In 2012, the second author introduced and examined a new type of algebras as a generalization of De Morgan algebras. These algebras are of type (2,0) with one binary and one nullary operation satisfying two certain specific identities. Such…

Group Theory · Mathematics 2020-08-11 S. V. Gusev , H. P. Sankappanavar , B. M. Vernikov

A restatement of the Algebraic Dichotomy Conjecture, due to Maroti and McKenzie, postulates that if a finite algebra A possesses a weak near-unanimity term, then the corresponding constraint satisfaction problem is tractable. A binary…

Group Theory · Mathematics 2015-01-20 Clifford Bergman , David Failing

A loop identity is of Bol-Moufang type if two of its three variables occur once on each side, the third variable occurs twice on each side, and the order in which the variables appear on both sides is the same, viz. $((xy)x)z=x(y(xz))$.…

Group Theory · Mathematics 2007-05-23 J. D. Phillips , Petr Vojtěchovský

In a paper published in 2012, the second author extended the well-known fact that Boolean algebras can be defined using only implication and a constant, to De Morgan algebras-this result led him to introduce, and investigate (in the same…

Logic · Mathematics 2016-06-10 Juan M. Cornejo , Hanamantagouda P. Sankappanavar

A loop $(Q,\cdot,\backslash,/)$ is called a middle Bol loop if it obeys the identity $x(yz\backslash x)=(x/z)(y\backslash x)$. To every right (left) Bol loop corresponds a middle Bol loop via an isostrophism. In this paper, the structure of…

We show that the variety of symmetric implication algebras is generated from cubic implication algebras and Boolean algebras. We do this by developing the notion of a locally symmetric implication algebra that has properties similar to…

Combinatorics · Mathematics 2009-02-09 Colin Bailey , Joseph Oliveira

For an associative algebra $A$ a skew-symmetric sum of $n!$ products of $n$ elements of $A$ in all possible order is called $n$-commutator. We consider $A$ as $n$-ary algebra under $n$-commutator. We prove that it has an identity of…

Rings and Algebras · Mathematics 2014-01-27 Askar Dzhumadil'daev

There are a number of identities which, if satisfied by a Bol loop, imply that the loop is actually Moufang. In this paper we show that in a number of cases, the Moufang identity is also forced not by a single identity, but by giving…

Group Theory · Mathematics 2012-10-01 Orin Chein , Edgar G. Goodaire , Michael Kinyon

We present results about groupoids of small order with Bol-Moufang type identities both classical and non-classical which are listed in [7, 8].

Group Theory · Mathematics 2020-06-19 Grigorii Horosh , Victor Shcherbacov , Alexandru Tcachenco , Tatiana Yatsko

We introduce a Morita type equivalence: two operator algebras $A$ and $B$ are called strongly $\Delta $-equivalent if they have completely isometric representations $\alpha $ and $\beta $ respectively and there exists a ternary ring of…

Operator Algebras · Mathematics 2016-04-19 G. K. Eleftherakis

A normalized holomorphic family (depending on $\boldsymbol \lambda \in \mathbb C^3$) of conformally invariant trilinear forms on the sphere is studied. Its zero set $Z$ is described. For $\boldsymbol \lambda\notin Z$, the multiplicity of…

Representation Theory · Mathematics 2017-10-24 Jean-Louis Clerc

We count number of groupoids of order 3 with some Bol-Moufang type identities.

Group Theory · Mathematics 2018-12-07 Vladimir Chernov , Alexander Moldovyan , Victor Shcherbacov

In this paper we define two types of implicative derivations on pseudo-BCI algebras, we investigate their properties and we give a characterization of regular implicative derivations of type II. We also define the notion of a $d$-invariant…

Logic · Mathematics 2019-03-22 Lavinia Corina Ciungu

A hemiimplicative semilattice is a bounded semilattice $(A, \wedge, 1)$ endowed with a binary operation $\to$, satisfying that for every $a, b, c \in A$, $a \leq b \to c$ implies $a \wedge b \leq c$ (that is to say, one of the conditionals…

Logic · Mathematics 2016-11-30 José Luis Castiglioni , Hernán Javier San Martín
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