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Proof step 35 from proof validrefs-levelsubset (previous step)

∀ str, ty0, st, str0. validrefs(str, acc, ty0, st) ∧ level⊆(str, str0) → validrefs(str0, acc, ty0, st), validrefs(str, r + acc, ty0, st), level⊆(str, str0) ⊦ validrefs(str0, r + acc, ty0, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 34:
level⊆(str, str0), validrefs(str, r ' + acc, ty0, st), ∀ str, ty0, st, str0. validrefs(str, acc, ty0, st) ∧ level⊆(str, str0) → validrefs(str0, acc, ty0, st) ⊦ validrefs(str0, r ' + acc, ty0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ r + refs = r ' + refs])]]