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Theorem factor-rat-01

⊦ j ≠ 0 ∧ i1 ≠ 0 → rational(i1 * i, i1 * j) = rational(i, j)

Type: A user defined theorem
Validity: The proof is valid.
Features: localsimp, simp,
Comment:
Used by: add-def-02, distributivity, factor-rat, mult-def-02, rational-add-same,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 6
Proof steps: 8
Used lemmas: neg-neg, factor-rat-02,
Used spec theorems:
- Used simplifier rules: