Examples of using Injective in English and their translations into Serbian
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Why then it is not injective?
If g o f is injective, then f is injective(but g need not be).
It is an example of an injective metric.
The homomorphism h is injective(and called a group monomorphism) if and only if ker(h)={eG}.
Thus it suffices to prove that is injective.
If f and g are both injective, then f∘ g is injective. .
For any set X,the identity function on X is injective.
F: X→ Y is injective if and only if, given any functions g, h: W→ X whenever f∘ g= f∘ h, then g= h.
In mathematical terms, it is an injective function.
If f: X→ Y is an injective function, then Y has at least as many elements as X, in the sense of cardinal numbers.
The function f: R→ R defined by f(x)= 2x+ 1 is injective.
If f: X→ Y is an injective function, then Y has at least as many elements as X, in the sense of cardinal numbers.
If S is infinite, the function can be chosen to be injective.
Given a injective function f from any set A to a metric space(X, d), d(f(x), f(y)) defines a metric on A.
If B is infinite then the function can be assumed to be injective.
If f: X→ Y is injective and A is a subset of X, then f- 1(f(A))= A. Thus, A can be recovered from its image f(A).
In the category of sets the converse also holds,so the monomorphisms are exactly the injective morphisms.
(2007) the households in the descriptive and injective norms condition(the one with the emoticon) reduced their electricity usage by 5%.
It is not true in general, however,that all monomorphisms must be injective in other categories.
More precisely, a function f is said to be injective if it maps distinct x in the domain to distinct y in the codomain, such that f(x)= y.
In the context of abstract algebra or universal algebra,a monomorphism is an injective homomorphism.
More generally, when X and Y are both the real line R,then an injective function f: R→ R is one whose graph is never intersected by any horizontal line more than once.
However, if g is redefined so that its domain is the non-negative real numbers 0,+∞,then g is injective.
Two sets A and B have the same cardinality, if there exists a bijection,that is, an injective and surjective function, from A to B.
If both X and Y are finite with the same number of elements, then f: X→ Y is surjective if andonly if f is injective.
Saunders Mac Lane attempted to make a distinction betweenwhat he called monomorphisms, which were maps in a concrete category whose underlying maps of sets were injective, and monic maps, which are monomorphisms in the categorical sense of the word.
For example, every function can be viewed as the composition of a surjective function with an injective function.
For subsets of Polish spaces,Borel sets can be characterized as those sets that are the ranges of continuous injective maps defined on Polish spaces.
Conversely, if the composition g∘ f{\displaystyle\scriptstyle g\,\circ\, f} of two functions is bijective,we can only say that f is injective and g is surjective.
For example, in the category Div of divisible abelian groups andgroup homomorphisms between them there are monomorphisms that are not injective: consider the quotient map q: Q→ Q/Z.