Database
SUPPLEMENTARY MATERIAL (USERS' MATHBOXES)
Mathbox for Glauco Siliprandi
Functions
elpmrn
Next ⟩
imaexi
Metamath Proof Explorer
Ascii
Unicode
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