Structures · Algebra
Module.Injective
An R-module Q is injective if and only if every injective R-linear map descends to a linear
map to Q, i.e. in the following diagram, if f is injective then there is an R-linear map
h : Y ⟶ Q such that g = h ∘ f
``
X f > Y
|
| g
v
Q
``
- Defined in
- Mathlib.Algebra.Module.Injective
- Shape
- 2 explicit arguments · adds out
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