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Proof step 15 from proof TOPRED-lem (previous step)

S _ t5 _ t4 _ t2 = K _ v _ v0 ∧ t0 = v ∧ value(v) ∧ value(v0) ∨ S _ t5 _ t4 _ t2 = S _ v1 _ v2 _ v3 ∧ t0 = v1 _ v3 _ (v2 _ v3) ∧ value(v1) ∧ value(v2) ∧ value(v3) ⊦ value(t5) ∧ value(t4) ∧ value(t2)

User applied rule case distinction

And closed the goal!

Rule argument

[CASEDARG : pos: left 1, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ t _ t0 = t1 _ t2 ↔ t = t1 ∧ t0 = t2], [CSIMPSEQ : ⊦ t _ t0 ≠ K])]]