Metamath Proof Explorer


Theorem elpmrn

Description: The range of a partial function. (Contributed by Glauco Siliprandi, 26-Jun-2021)

Ref Expression
Assertion elpmrn F A 𝑝𝑚 B ran F A

Proof

Step Hyp Ref Expression
1 elpmi F A 𝑝𝑚 B F : dom F A dom F B
2 1 simpld F A 𝑝𝑚 B F : dom F A
3 2 frnd F A 𝑝𝑚 B ran F A