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Theorem zero-denom

⊦ rational(i, 0) = rational(i, 1)

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: denom-neg-01, negate-01, num-neg-01, rational-add-same,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 6
Proof steps: 6
Used lemmas: denominator-pos, denominator-zero-den, numerator-pos, denominator-zero, numerator-zero, numerator-zero-den, Equality,
Used spec theorems:
- int-gcd/gcd-one-01
Used simplifier rules:
- int-gcd/gcd-one-01
- int-div/one