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Proof step 2 from proof is-encoded-size (previous step)

is-encoded-nonempty(a, buf) ⊦ # buf = ENCODED_ELEM_SIZE

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
⊦ is-encoded-nonempty(a, buf) ↔ is-encoded(a, buf) ∧ ¬ isempty(buf)

Rule argument

Additional information

Used simplifier rules: is-encoded-nonempty: ⊦ is-encoded-nonempty(a, buf) ↔ is-encoded(a, buf) ∧ ¬ isempty(buf);%is-encoded-size: ⊦ is-encoded(a, buf) → # buf = ENCODED_ELEM_SIZE; (forward) from specification encoding-fixed-size% ⊦ isempty(buf) ↔ buf = mkempbuf(# buf); (s)