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Proof step 138 from proof validval-put-any (previous step)

sk .fs = mkfs(class, ty, fieldvar), validval(str, r -- sk, val0, st), validval(str, rk, val, st) ⊦ is_indexkey(sk) → validval(str, val0, st[r -- _type] .type .type, st[rk, val]), r -- _type = rk

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 137:
sk .fs = mkfs(class, ty, fieldvar), validval(str, rk, val, st), validval(str, r -- sk, val0, st), is_indexkey(sk) ⊦ r -- _type = rk, validval(str, val0, st[r -- _type] .type .type, st[rk, val])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]