[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 disjoint
⊦ disj(x, y) ↔ (∀ a. ¬(a ∈ x ∧ a ∈ y))
Type: An axiom
Validity: The proof is valid.
Features:
Comment:
Used by:
dis-empty
,
e
,
first
,
first-01
,
in
,
lastoc
,
one
,
one-01
,
sym
,
Used by units in proved state:
Proof exists?: No