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Theorem abs-pos

⊦ mkDecimal(0, 0) ≤ dec → abs(dec) = dec

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: abs-zero, square-abs,
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: abs-any-def, le-zero,
Used spec theorems:
- Used simplifier rules: