[Imprint]
[Data Privacy Statement]
[E-Mail]
View
long theorem info
. View
the proof
. Back to
main index
. View
the specification
. View
theorem base summary
, View
theorem base listing
, the
used properties by spec
, the
dependency list
, the
symbol table
,
Theorem perm
⊦ perm(x, y) ↔ x ⊆m y ∧ y ⊆m x
Type: An axiom
Validity: The proof is valid.
Features:
Comment:
Used by:
del
,
diff
,
filter
,
in
,
in-01
,
l
,
perm-all
,
perm-def
,
perm-dups
,
ref
,
sym
,
trans
,
Used by units in proved state:
Proof exists?: No