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How to pronounce “injective”
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Pronunciation guide for injective
- Learning goal
- Practice the English pronunciation of injective with real speech in context.
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- Definition summary
- (mathematics) Of, relating to, or being an injection: such that each element of the image (or range) is associated with at most one element of the preimage (or domain); inverse-deterministic
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A Deep Dive Into “injective”
Meaning
- [Adjective]
- (mathematics) Of, relating to, or being an injection: such that each element of the image (or range) is associated with at most one element of the preimage (or domain); inverse-deterministic
- (algebra, module theory, of a (left) module
- M
- {\displaystyle M}
- over a ring
- R
- {\displaystyle R}
- ) Loosely, having a certain generalizing property, abstracted from the study of
- Q
- {\displaystyle \mathbb {Q} }
- as a
- Z
- {\displaystyle \mathbb {Z} }
- -module. Formally, such that any short exact sequence of (left)
- R
- {\displaystyle R}
- -modules beginning with
- M
- {\displaystyle M}
- splits, or any of several equivalent statements: See Injective module.
- (category theory, most generally, of an object
- Q
- {\displaystyle Q}
- in a category
- C
- {\displaystyle C}
- ) Loosely, having a property analogous to that which characterizes injective modules (see above). Formally, such that, given a monomorphism
- f
- :
- X
- →
- Y
- {\displaystyle f:X\to Y}
- in
- C
- {\displaystyle C}
- , for every morphism
- g
- :
- X
- →
- Q
- {\displaystyle g:X\to Q}
- there exists a morphism
- h
- :
- Y
- →
- Q
- {\displaystyle h:Y\to Q}
- such that
- h
- ∘
- f
- =
- g
- {\displaystyle h\circ f=g}
- ; see Injective object.
- (homological algebra, of a resolution) Such that the objects (usually modules) involved in the resolution are injective (in the algebraic senses above).
Practice Nearby Words
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Similar Sounds
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