Newbetuts
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New posts in category-theory
Do adjoint functors really define monads?
abstract-algebra
category-theory
monads
Volume 3 of Johnstone's "Sketches of an Elephant"
reference-request
category-theory
topos-theory
Category Theory and Quantum Mechanics
reference-request
category-theory
mathematical-physics
quantum-mechanics
quantum-field-theory
Category with zero morphisms
category-theory
Doubt about proof of factorization $f=pi$, where $i$ is acyclic cofibration and $p$ is fibration
general-topology
algebraic-topology
category-theory
model-categories
Fiber product of sheaves
algebraic-geometry
category-theory
sheaf-theory
Can we make any functor injective on objects?
category-theory
What is the dual of implication?
logic
category-theory
constructive-mathematics
The ring of idempotents
ring-theory
category-theory
boolean-algebra
What are the epimorphisms and monomorphisms in the category of affine varieties?
algebraic-geometry
category-theory
definition of a free object in a category
category-theory
Why is tensoring a functor? On objects, it is only defined up to isomorphism... also fiber products...
commutative-algebra
category-theory
tensor-products
If $0$ is the zero-object $ \Longrightarrow F(0) $ is the zero object when $F$ additive
abstract-algebra
category-theory
modules
When is a bijective homomorphism an isomorphism?
category-theory
group-homomorphism
universal-algebra
A question about Hom functor in category theory
category-theory
Does this theorem/collection of theorems have a name? Or is it just seen as obvious?
abstract-algebra
category-theory
definition
universal-algebra
morphism
Is there a "natural" / "categorical" definition of the "parity" of a permutation?
soft-question
category-theory
permutations
groupoids
What does "dual statement" mean exactly in category theory?
category-theory
definition
meta-math
Applications of Category Theory Outside of Mathematics (the discipline)
reference-request
category-theory
Proof verification: Yoneda preserves limits
category-theory
yoneda-lemma
hom-functor
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