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Proof step 3 from proof is-encoded-is-aligned (previous step)

is-encoded-aligned(a, buf) ⊦ is-aligned(# buf, ENCODED_ELEM_ALIGNMENT)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ is-encoded-aligned(a, buf) ↔ (∃ buf0, buf1. buf = buf0 + buf1 ∧ is-encoded(a, buf0) ∧ # buf = size-aligned(a, ENCODED_ELEM_ALIGNMENT))
Proof step 5:
∃ buf0, buf1. buf = buf0 + buf1 ∧ is-encoded(a, buf0) ∧ # buf = size-aligned(a, ENCODED_ELEM_ALIGNMENT) ⊦ is-aligned(# buf, ENCODED_ELEM_ALIGNMENT)

Rule argument

spec: <toplevel> name: is-encoded-aligned seq: ⊦ is-encoded-aligned(a, buf) ↔ (∃ buf0, buf1. buf = buf0 + buf1 ∧ is-encoded(a, buf0) ∧ # buf = size-aligned(a, ENCODED_ELEM_ALIGNMENT)) subst: [buf, a] → [buf, a] flags: <all paths>

Additional information

Used terms: buf, a