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Theorem sw-del-add-01

r ≠ null ∧ ¬ r ∈ H ⊦ r0 ∈ H1 ∧ ¬ r ∈ H1 → ((H -- r0) ++ r)[r, o] = (H ++ r)[r, o] -- r0

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: 1
Proof steps: 3
Used lemmas: sw-del-add,
Used spec theorems:
- Used simplifier rules: