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Proof step 29 from proof subst-KK-equal (previous step)

C1[K _ v1 _ v2] _ t = C0[K _ v _ v0], value(v1), value(v2), value(v), value(v0), context(C0), context(C1), ∀ v3, v4, C, v5, v6. C1[K _ v3 _ v4] = C[K _ v5 _ v6] ∧ value(v3) ∧ value(v4) ∧ value(v5) ∧ value(v6) ∧ context(C) → C1[v3] = C[v5] ⊦ C1[v1] _ t = C0[v]

User applied rule constructor cut

And obtained the following new goals

Proof step 23:
C0 = O, C1[K _ v1 _ v2] _ t = C0[K _ v _ v0], value(v1), value(v2), value(v), value(v0), context(C0), context(C1), ∀ v3, v4, C, v5, v6. C1[K _ v3 _ v4] = C[K _ v5 _ v6] ∧ value(v3) ∧ value(v4) ∧ value(v5) ∧ value(v6) ∧ context(C) → C1[v3] = C[v5] ⊦ C1[v1] _ t = C0[v]
Proof step 26:
C0 = C2 _ t0, C1[K _ v1 _ v2] _ t = C0[K _ v _ v0], value(v1), value(v2), value(v), value(v0), context(C0), context(C1), ∀ v3, v4, C, v5, v6. C1[K _ v3 _ v4] = C[K _ v5 _ v6] ∧ value(v3) ∧ value(v4) ∧ value(v5) ∧ value(v6) ∧ context(C) → C1[v3] = C[v5] ⊦ C1[v1] _ t = C0[v]
Proof step 27:
⊦ (t1 _ C)[t] = t1 _ C[t]
Proof step 28:
⊦ ¬ value(C[K _ t _ t0])

Rule argument

[var-arg: C0]

Additional information

[[CONCRETESIMPRULES : ([CSIMPGEN : rawctxt generated by o, _, _;], [CSIMPSEQ : ⊦ t _ t0 = t1 _ t2 ↔ t = t1 ∧ t0 = t2], [CSIMPSEQ : ⊦ context(t _ C) ↔ ¬ ¬ (context(C) ∧ value(t))])]]