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Theorem ple-pos

0.r < r, 0.r < r0, r ≤ r1, r0 ≤ r2 ⊦ r * r0 ≤ r1 * r2

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: square-le,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 4
Used lemmas: mult-com, mult-ass, ls-pos,
Used spec theorems:
- real-abs/lels
- real-abs/forward-lele
Used simplifier rules: