Metamath Proof Explorer


Theorem lmhmf

Description: A homomorphism of left modules is a function. (Contributed by Stefan O'Rear, 1-Jan-2015)

Ref Expression
Hypotheses lmhmf.b B = Base S
lmhmf.c C = Base T
Assertion lmhmf F S LMHom T F : B C

Proof

Step Hyp Ref Expression
1 lmhmf.b B = Base S
2 lmhmf.c C = Base T
3 lmghm F S LMHom T F S GrpHom T
4 1 2 ghmf F S GrpHom T F : B C
5 3 4 syl F S LMHom T F : B C