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Theorem abs-21

⊦ i ≠ j → (abs(i) = abs(j) ↔ i = ~ j)

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: 0
Proof steps: 6
Used lemmas: sub-sub-03, absneg-01, Abs-pos, sub-zero, forward-le-02, abs-08, sub-eq, Minus-def,
Used spec theorems:
- Used simplifier rules: