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Proof step 17 from proof abs-nodes-add-crash-aligned (previous step)

# buf1 = a.alignedsize + 2 * NODE_HEADER_SIZE, abs-node(buf1, a), abs-nodes(buf0, 0, x, lax, false), is-aligned(# buf0 + # buf1, EB_PAGE_SIZE) ⊦ abs-nodes(buf1, # buf0, a + [], @(# buf0, # buf1) ', boolvar)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 18:
⊦ a + x = a ' + x
Proof step 19:
# buf1 = a.alignedsize + 2 * NODE_HEADER_SIZE, abs-node(buf1, a), abs-nodes(buf0, 0, x, lax, false), is-aligned(# buf0 + # buf1, EB_PAGE_SIZE) ⊦ abs-nodes(buf1, # buf0, a ' + [], @(# buf0, # buf1) ', boolvar)

Rule argument

spec: list name: c seq: ⊦ a + x = a ' + x subst: [x, a] → [[], a] flags: <all paths>

Additional information

Used terms: [], a