Database
SURREAL NUMBERS
Conway cut representation
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madeno
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oldno
Metamath Proof Explorer
Ascii
Unicode
Theorem
madeno
Description:
An element of a made set is a surreal.
(Contributed by
Scott Fenton
, 27-Feb-2026)
Ref
Expression
Assertion
madeno
⊢
A
∈
M
⁡
B
→
A
∈
No
Proof
Step
Hyp
Ref
Expression
1
madessno
⊢
M
⁡
B
⊆
No
2
1
sseli
⊢
A
∈
M
⁡
B
→
A
∈
No