Database
ZF (ZERMELO-FRAENKEL) SET THEORY
ZF Set Theory - add the Axiom of Power Sets
Partial and total orderings
sopo
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soss
Metamath Proof Explorer
Ascii
Unicode
Theorem
sopo
Description:
A strict linear order is a strict partial order.
(Contributed by
NM
, 28-Mar-1997)
Ref
Expression
Assertion
sopo
⊢
R
Or
A
→
R
Po
A
Proof
Step
Hyp
Ref
Expression
1
df-so
⊢
R
Or
A
↔
R
Po
A
∧
∀
x
∈
A
∀
y
∈
A
x
R
y
∨
x
=
y
∨
y
R
x
2
1
simplbi
⊢
R
Or
A
→
R
Po
A