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Theorem mult-ass

⊦ (ri * rj) * rj1 = ri * rj * rj1

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: distributivity, mult-one-01, root-is-irrational,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 7
Proof steps: 13
Used lemmas: mult-def-03, exrat-01,
Used spec theorems:
- Used simplifier rules: