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Proof step 20 from proof validrefkeynotnull-put-shortval (previous step)

is_shortvalue(st[r -- mkfs(class, short_type, fieldvar) ']), validrefkeynotnull(str, rk, ty, st) ⊦ r = jvmref, rk ∈ st[r -- mkfs(class, short_type, fieldvar) ', shortval(sho)] ∧ validrefvalnotnull (str, st[r -- mkfs(class, short_type, fieldvar) ', shortval(sho)][rk], ty, st[r -- mkfs(class, short_type, fieldvar) ', shortval(sho)])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
⊦ validrefkeynotnull(str, rk, ty, st) → rk ∈ st
Proof step 19:
is_shortvalue(st[r -- mkfs(class, short_type, fieldvar) ']), validrefkeynotnull(str, rk, ty, st) ⊦ r = jvmref, validrefvalnotnull (str, st[r -- mkfs(class, short_type, fieldvar) ', shortval(sho)][rk], ty, st[r -- mkfs(class, short_type, fieldvar) ', shortval(sho)])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ rk ∈ st[rk0, val] ↔ rk = rk0 ∨ rk ∈ st])]]