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Theorem cong-neg

⊦ ≡mod(~ i, ~ i0, j) ↔ ≡mod(i, i0, j)

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: fermat-1,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 5
Proof steps: 7
Used lemmas: congmod-def,
Used spec theorems:
- int-gcd/div-neg
Used simplifier rules: