What does precongruence mean?
Definitions for precongruence
pre·con·gru·ence
This dictionary definitions page includes all the possible meanings, example usage and translations of the word precongruence.
Wiktionary
precongruencenoun
A congruence of a preorder
Wikipedia
precongruence
In mathematics, especially in order theory, a preorder or quasiorder is a binary relation that is reflexive and transitive. Preorders are more general than equivalence relations and (non-strict) partial orders, both of which are special cases of a preorder: an antisymmetric (or skeletal) preorder is a partial order, and a symmetric preorder is an equivalence relation. The name preorder comes from the idea that preorders (that are not partial orders) are 'almost' (partial) orders, but not quite; they are neither necessarily antisymmetric nor asymmetric. Because a preorder is a binary relation, the symbol ≤ {\displaystyle \,\leq \,} can be used as the notational device for the relation. However, because they are not necessarily antisymmetric, some of the ordinary intuition associated to the symbol ≤ {\displaystyle \,\leq \,} may not apply. On the other hand, a preorder can be used, in a straightforward fashion, to define a partial order and an equivalence relation. Doing so, however, is not always useful or worthwhile, depending on the problem domain being studied. In words, when a ≤ b , {\displaystyle a\leq b,} one may say that b covers a or that a precedes b, or that b reduces to a. Occasionally, the notation ← or → or ≲ {\displaystyle \,\lesssim \,} is used instead of ≤ . {\displaystyle \,\leq .} To every preorder, there corresponds a directed graph, with elements of the set corresponding to vertices, and the order relation between pairs of elements corresponding to the directed edges between vertices. The converse is not true: most directed graphs are neither reflexive nor transitive. In general, the corresponding graphs may contain cycles. A preorder that is antisymmetric no longer has cycles; it is a partial order, and corresponds to a directed acyclic graph. A preorder that is symmetric is an equivalence relation; it can be thought of as having lost the direction markers on the edges of the graph. In general, a preorder's corresponding directed graph may have many disconnected components.
Numerology
Chaldean Numerology
The numerical value of precongruence in Chaldean Numerology is: 5
Pythagorean Numerology
The numerical value of precongruence in Pythagorean Numerology is: 9
Translations for precongruence
From our Multilingual Translation Dictionary
- pré-graduaçãoPortuguese
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"precongruence." Definitions.net. STANDS4 LLC, 2024. Web. 29 Apr. 2024. <https://www.definitions.net/definition/precongruence>.
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