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Proof step 5 from proof contains-boolarray-03 (previous step)

⊦ (∃ tys. contains(`docs2store', mkarraytype(boolean_type) ' + (tys + ty))) ↔ ty = boolean_type

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
⊦ contains(str, mkarraytype(boolean_type) ' + tys + ty ') ↔ tys = [] ∧ ty = boolean_type
Proof step 4:
⊦ ∃ tys. contains(`docs2store', mkarraytype(boolean_type) ' + tys + boolean_type ')

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (tys + tys0) + tys1 = tys + tys0 + tys1], [CSIMPSEQ : ⊦ tys + ty = tys + ty '])]]