query: Are all split epimorphisms effective?
positive_passages.docid: 147133
positive_passages.text: If a morphism has a section then it is an effective epimorphism?
negative_passages.docid: 143043
negative_passages.text: When is a local homeomorphism a covering map?
negative_passages.docid: 67633
negative_passages.text: Generic flatness on modules
negative_passages.docid: 6904
negative_passages.text: questions about extremal epimorphisms in category theory
negative_passages.docid: 127886
negative_passages.text: Artin's lemma and some morphisms.
negative_passages.docid: 44559
negative_passages.text: Finding a homeomorphism $\mathbb{R} \times S^1 \to \mathbb{R}^2 \setminus \{(0,0)\}$
negative_passages.docid: 27757
negative_passages.text: $\mathbb{R}\to\mathbb{R}$ Diffeomorphism with special property
negative_passages.docid: 52012
negative_passages.text: Is there exist a homemoorphism between either pair of $(0,1),(0,1],[0,1]$
negative_passages.docid: 123370
negative_passages.text: Can every semi-algebraic set be written as a finite union of disjoint Nash submanifolds?
negative_passages.docid: 30178
negative_passages.text: Homeomorphism $(\mathbb{CP}^1)^m/S_m \overset{\sim}{\to} \mathbb{CP}^m$?
negative_passages.docid: 92729
negative_passages.text: Morphism decomposition
negative_passages.docid: 115409
negative_passages.text: Are MAGMA-epimorphisms sujective?
negative_passages.docid: 34300
negative_passages.text: "Natural" categories where monomorphisms differ from injective morphisms
negative_passages.docid: 84317
negative_passages.text: Iterated self-composition of arbitrary function
negative_passages.docid: 91736
negative_passages.text: Explicit homeomorphism between open and closed rational intervals?
negative_passages.docid: 126472
negative_passages.text: Surjective endomorphisms of uniserial modules
negative_passages.docid: 98436
negative_passages.text: Finite order endomorphisms