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Theorem Disjoint
⊦ disjoint(s1, s2) ↔ s1 ∩ s2 = ∅
Type: An axiom
Validity: The proof is valid.
Features: ls,
Comment:
Used by:
disjoint-02
,
disjoint-all
,
disjoint-diff
,
disjoint-diff-subset
,
disjoint-empty
,
disjoint-int-empty
,
disjoint-int-notempty-01
,
disjoint-notempty-01
,
disjoint-rec
,
disjoint-rem
,
disjoint-size-union
,
disjoint-sym
,
disjointu-empty
,
rem-disjoint
,
rem-interempty-disjoint1
,
rem-interempty-disjoint12
,
rem-interempty-disjoint13
,
rem-interempty-disjoint2
,
rem-interempty-disjoint23
,
rem-interempty-disjoint3
,
subset-disjoint-union
,
subseteq-disjoint-empty
,
union-sub-rem-disjoint
,
union-sub-rem-inter-empty-disjoint
,
Used by units in proved state:
Proof exists?: No