Question

Showing $\Theta_{i}$ defined on $\prod _{i\in I}\mathcal{A}_{i}$ is a congruence relation.

score 27 · Answer 1 · 2026-05-10 14:07:08

27

Views

Showing $\Theta_{i}$ defined on $\prod _{i\in I}\mathcal{A}_{i}$ is a congruence relation.

Published on 10 May 2026 - 14:07

score 278 · Answer 2 · 2026-04-28 02:59:19

278

Views

Is it true, that for any two non-isomorphic finite groups $G$ and $H$ there exists such a group word $w$, that $|V_w(G)| \neq |V_w(H)|$?

Published on 28 Apr 2026 - 2:59

score 179 · Answer 3 · 2026-04-10 17:38:07

179

Views

Do we need the axiom of replacement (ZFC) to define a product of structures (Universal Algebra)?

Published on 10 Apr 2026 - 17:38

score 477 · Answer 4 · 2026-04-16 03:59:42

477

Views

Reflexive graph, meaning of the reflection

Published on 16 Apr 2026 - 3:59

score 118 · Answer 5 · 2026-04-13 08:52:36

118

Views

Does the specific condition on a normal subgroup of a finite group imply that it is a direct factor?

Published on 13 Apr 2026 - 8:52

score 133 · Answer 6 · 2026-04-14 07:46:35

133

Views

Are the "compatibility axioms" of vector space axioms derivable from a general "compatibility principle"

Published on 14 Apr 2026 - 7:46

score 55 · Answer 7 · 2026-04-16 07:39:51

55

Views

Can every β∈Eq(A) be represented by some terms using α1,α2,α3,α4∈Eq(A) and ∩,∨?

Published on 16 Apr 2026 - 7:39

score 157 · Answer 8 · 2026-04-14 14:18:37

157

Views

Does the specific condition on a normal subgroup of a finite group imply that it is a direct factor? v2.0

Published on 14 Apr 2026 - 14:18

score 141 · Answer 9 · 2026-04-17 06:38:17

141

Views

Trying to find a 4-nary bracket operator that is not a generalisation of commutator, associator and polynomial identities

Published on 17 Apr 2026 - 6:38

score 92 · Answer 10 · 2026-04-15 04:56:37

92

Views

Query on algebraic systems, varieties and free objects

Published on 15 Apr 2026 - 4:56

score 351 · Answer 11 · 2026-04-13 16:19:25

351

Views

Why an alternative magma need not even be power-associative?

Published on 13 Apr 2026 - 16:19

score 70 · Answer 12 · 2026-04-12 09:57:13

70

Views

Equivalence of Frankl's Conjecture

Published on 12 Apr 2026 - 9:57

score 125 · Answer 13 · 2026-04-15 11:25:12

125

Views

Cardinality of Sub(A) is smaller than ${\aleph_0}$ or equal $2^{\aleph_0}$?

Published on 15 Apr 2026 - 11:25

score 148 · Answer 14 · 2026-05-10 14:04:20

148

Views

CEP for (distributive) lattices and groups?

Published on 10 May 2026 - 14:04

score 127 · Answer 15 · 2026-05-10 15:25:48

127

Views

If $(\alpha,\beta)$ is the factor pair congruences of algebra $\mathbb{A},$ ia $(\forall \gamma\in ConA)\alpha\circ\gamma=\gamma\circ\beta?$

Published on 10 May 2026 - 15:25

List Question

Showing $\Theta_{i}$ defined on $\prod _{i\in I}\mathcal{A}_{i}$ is a congruence relation.

Is it true, that for any two non-isomorphic finite groups $G$ and $H$ there exists such a group word $w$, that $|V_w(G)| \neq |V_w(H)|$?

Do we need the axiom of replacement (ZFC) to define a product of structures (Universal Algebra)?

Reflexive graph, meaning of the reflection

Does the specific condition on a normal subgroup of a finite group imply that it is a direct factor?

Are the "compatibility axioms" of vector space axioms derivable from a general "compatibility principle"

Can every β∈Eq(A) be represented by some terms using α1,α2,α3,α4∈Eq(A) and ∩,∨?

Does the specific condition on a normal subgroup of a finite group imply that it is a direct factor? v2.0

Trying to find a 4-nary bracket operator that is not a generalisation of commutator, associator and polynomial identities

Query on algebraic systems, varieties and free objects

Why an alternative magma need not even be power-associative?

Equivalence of Frankl's Conjecture

Cardinality of Sub(A) is smaller than ${\aleph_0}$ or equal $2^{\aleph_0}$?

CEP for (distributive) lattices and groups?

If $(\alpha,\beta)$ is the factor pair congruences of algebra $\mathbb{A},$ ia $(\forall \gamma\in ConA)\alpha\circ\gamma=\gamma\circ\beta?$

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