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Proof step 2 from proof at-other-class-01 (previous step)

⊦ stringvar = `*Array*', (((r = r0 ∧ _length = mkfs(stringvar .class, ty, fieldvar) ') ⊃ val; st[r -- _length])) = st[r -- _length]

Heuristic if-then-else split applied rule case distinction

And closed the goal!

Rule argument

[CASEDARG : pos: right 2, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ mkfs(class1, ty, fieldvar) ' = _length → class1 = `*Array*' .class ∧ ty = int_type ∧ fieldvar = `length' .field], [CSIMPSEQ : ⊦ stringvar .class = stringvar0 .class ↔ stringvar = stringvar0])]]