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Proof step 9 from proof denom-neg-02 (
previous step
)
⊦ (0r - rational(0, 1)).denom = 1
User applied rule insert rewrite lemma
And obtained the following new goals
Proof step 10
:
⊦ 0r = rational(0, 1)
Proof step 11
:
⊦ (rational(0, 1) - rational(0, 1)).denom = 1
Rule argument
name: zero-def rotate: F subst:
Additional information
Used terms: