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Proof step 12 from proof RED-complete (previous step)

∀ n0, t', t. n0 < 0 → (irred(t') ∧ (=> ^ n0)(t, t') → 〈RED(t; t0)〉 t0 = t'), irred(t') ⊦ 〈RED(t'; t0)〉 t0 = t'

User applied rule call right

And obtained the following new goals

Proof step 3:
⊦
Proof step 11:
∀ n0, t', t. n0 < 0 → (irred(t') ∧ (=> ^ n0)(t, t') → 〈RED(t; t0)〉 t0 = t'), irred(t') ⊦ 〈let tn = none in { RED1(t'; tn) ; if tn ≠ none then RED(tn .t; t1) else t1 := t' }〉 t1 = t'

Rule argument

[fmapos-arg: pos: right 1]

Additional information

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