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Theorem zero-gs

⊦ 0.r ≤ r ∧ 0.r ≤ r0 → ¬ r + r0 < 0.r

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by: abs-12,
Used by units in proved state: real-multdiv,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas: le-def,
Used spec theorems:
- Used simplifier rules: