The [docstring](https://nemocas.github.io/AbstractAlgebra.jl/stable/module_homomorphism/#AbstractAlgebra.ModuleIsomorphism-Union{Tuple{T},%20Tuple{AbstractAlgebra.FPModule{T},%20AbstractAlgebra.FPModule{T},%20MatElem{T}}}%20where%20T%3C:RingElement) for `ModuleIsomorphism` gives a signature with 4 arguments, which doesn't exist. The correct 3-argument signature is not mentioned.
The docstring for
ModuleIsomorphismgives a signature with 4 arguments, which doesn't exist. The correct 3-argument signature is not mentioned.