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Theorem add-asso

⊦ (ri + rj) + rj0 = ri + rj + rj0

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: add-zero-02, denom-neg-02, elim-sub, mult-split, negate-02, negate-eq, rational-add-same,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 10
Proof steps: 17
Used lemmas: add-def-03, exrat-01,
Used spec theorems:
- int-mult/dist-rsplit
- int-mult/dist-lsplit
Used simplifier rules: