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Proof step 39 from proof validrefs-delcycle-01 (previous step)

validrefs(str, refs + r ' + refs0 + r ' + refs1, ty, st) ⊦ validrefs(str, refs + r ' + refs1, ty, st)

User applied rule structural induction

And obtained the following new goals

Proof step 12:
validrefs(str, [] + r ' + refs0 + r ' + refs1, ty, st) ⊦ validrefs(str, [] + r ' + refs1, ty, st)
Proof step 38:
∀ str, r, refs0, refs1, ty, st. validrefs(str, acc + r ' + refs0 + r ' + refs1, ty, st) → validrefs(str, acc + r ' + refs1, ty, st), validrefs(str, (r0 + acc) + r ' + refs0 + r ' + refs1, ty, st) ⊦ validrefs(str, (r0 + acc) + r ' + refs1, ty, st)

Rule argument

[VARWITHVARSEQSARG : refs, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPGEN : references generated by [], +;])]]