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Theorem ceil-ls-negint

⊦ ⌈r⌉ + i < 0 ↔ r + 1.r + i.r ≤ 0.r

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 3
Used lemmas: ceil-is-neg-floor-neg, ceil-ls-int,
Used spec theorems:
- real-basic/eqint-neg
Used simplifier rules: