List questions from monomorphisms

Published on 09 Jan 2014 - 11:53

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Any category with zero object, every kernel is monomorphism.

Published on 24 Mar 2026 - 4:06

106

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Is $\mathbb Z_7$ an extension of $\mathbb Z_2$?

Published on 11 Jul 2017 - 1:13

503

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How do kernels prove how a function fails to be injective

Published on 26 Jul 2017 - 22:20

309

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Mono(epi)morphisms as im(sub)mersions in the category of manifolds

Published on 25 Mar 2026 - 2:35

310

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A counterexample to Cantor–Schröder–Bernstein in groups.

Published on 07 Oct 2017 - 3:58

118

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Confused about the definition of a Field Extension

Published on 02 Nov 2017 - 22:40

49

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Plain monomorphism,the defintion

Published on 18 Nov 2017 - 17:16

89

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Is there a counter example for monmorphism

Published on 22 Nov 2017 - 22:54

627

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Is an injective function always monomorphic

Published on 26 Nov 2017 - 12:54

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How exactly is a Field monomorphism defined?

Published on 09 Dec 2017 - 16:16

201

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A question about linearly independent monomorphisms.

Published on 09 Dec 2017 - 19:40

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Epimorphism and Monomorphism = Isomorphism?

Published on 29 Dec 2012 - 6:18

261

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Is the canonical morphism from $A$ to $R^{R^A}$ monic?

Published on 20 Jan 2013 - 21:31

425

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Mono/Epi of sections of presheaves

Published on 10 Feb 2013 - 19:53

List Question

For an abelian group $G=G'$, the endomorphism $x \mapsto x^{-1}$ is both monic and epic

Any category with zero object, every kernel is monomorphism.

Is $\mathbb Z_7$ an extension of $\mathbb Z_2$?

How do kernels prove how a function fails to be injective

Mono(epi)morphisms as im(sub)mersions in the category of manifolds

A counterexample to Cantor–Schröder–Bernstein in groups.

Confused about the definition of a Field Extension

Plain monomorphism,the defintion

Is there a counter example for monmorphism

Is an injective function always monomorphic

How exactly is a Field monomorphism defined?

A question about linearly independent monomorphisms.

Epimorphism and Monomorphism = Isomorphism?

Is the canonical morphism from $A$ to $R^{R^A}$ monic?

Mono/Epi of sections of presheaves

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