Congruence is the state achieved by coming together, the state of agreement. The Latin congruere means to come together, agree. As an abstract term, congruence means similarity between objects. Congruence, as opposed to equivalence or approximation, is a relation which implies a kind of equivalence, though not complete equivalence.
- In psychology and NLP (Neuro-linguistic programming), congruence could be defined as rapport within oneself, or internal and external consistency, perceived by others as sincerity or certainty. Neuro-linguistic programming (or NLP) is an Interpersonal communication model applied in Psychotherapy and other contexts of communication and change For other uses see Rapport (disambiguation. Rapport is one of the most important features or characteristics of unconscious human interaction
- An alternative definition of congruence in the work of Virginia Satir, one of the sources of NLP, is the balance between self, other and context. Virginia Satir ( 26 June 1916 - 10 September 1988) was a noted American author and psychotherapist, known especially for
- In cladistics, congruence is a test of homology, or shared, derived character states, in which the distributions of supposed homologies among taxa are compared for consistency. In Evolutionary biology, homology has come to mean any similarity between characters that is due to their shared ancestry.
- horizontal and vertical congruence, two related principles of grouping
- In geometry, triangles and other figures are congruent if they are isometric – roughly, if they are of the same size and shape. See Congruence (geometry). In Geometry, two sets of points are called congruent if one can be transformed into the other by an Isometry, i
- In mathematics and especially in abstract algebra as well as modular arithmetic, a congruence relation or simply congruence is an equivalence relation that is compatible with some algebraic operation(s). See Congruence (geometry for the term as used in elementary geometry
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