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Theorem abs-eqall

⊦ abs(i * j) = abs(i) * abs(j)

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: modzero-08, square-abs, square-eq, square-le-02, square-ls,
Used by units in proved state: int-gcd, int-div, int-square,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 5
Used lemmas: zero-ge-02, zero-le-01, zero-ge-01, commutativity, associativity, minus-left,
Used spec theorems:
- Used simplifier rules: