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Theorem int-del-rew

⊦ ¬ a ∈ s → s ∩ (s0 -- a) = (s ∩ s0) -- a

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by:
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: Delete, Intersect, int-c, int-a, del-rax, int-rax, ext,
Used spec theorems:
- Used simplifier rules: