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Theorem square-ls

⊦ dec * dec < dec0 * dec0 ↔ abs(dec) < abs(dec0)

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: 12
Proof steps: 21
Used lemmas: abs-any-def, ls-not, less-def-any, mult-def-any,
Used spec theorems:
- Unknown/Unknown
- int-abs/Abs-pos
Used simplifier rules: