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Theorem union-com

⊦ bag0 ∪ bag1 = bag1 ∪ bag0

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: in-union, subset-exdiff, union-diff-cancel, union-diff-distr, union-inj, union-size, union-subset, union-subset-inj,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 1
Used lemmas: union-ass, union,
Used spec theorems:
- Used simplifier rules: