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Theorem gcd-negone-eq

⊦ ~1 = j2 / gcd(i2, j2) → gcd(i2, j2) = ~ j2

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 4
Proof steps: 5
Used lemmas: gcd-zero, gcd-zero-zero, gcd-pos, gcd-com, gcd-neg, gcd-one-eq,
Used spec theorems:
- int-div/num-neg
Used simplifier rules: