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Theorem del-n-simp

a ≠ b ⊦ ((* a) ' + x) -l (* b) = a ' + (x -l b)

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
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: 2
Used lemmas: del-n,
Used spec theorems:
- Used simplifier rules:
  - list/app-08
  - list/a