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Proof step 6 from proof RED-iff-reduce (conclusion)

⊦ 〈RED(t; t0)〉 t0 = t' ↔ t =>* t' ∧ irred(t')

Heuristic dl case distinction applied rule case distinction

And obtained the following new goals

Proof step 3:
〈RED(t; t0)〉 t0 = t', ¬ t =>* t' ∨ ¬ irred(t') ⊦
Proof step 5:
t =>* t', irred(t') ⊦ 〈RED(t; t0)〉 t0 = t'

Rule argument

[CASEDARG : pos: right 1, ()]

Additional information

[[CONCRETESIMPRULES : ()]]