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Proof step 10 from proof abs-nodes-emptyheader-h (previous step)

isempty(buf, 0, NODE_HEADER_SIZE), buf = mkbuf(0) ∧ lax = [] ∨ buf = buf0 + buf1 ∧ abs-padding(buf0) ∧ abs-nodes(buf1, m + # buf0, [], lax, weak) ∨ weak ∧ abs-failed(buf) ∧ lax = [] ⊦ (buf = mkbuf(0) ∨ abs-failed(buf) ∧ weak) ∧ lax = []

User applied rule case distinction

And obtained the following new goals

Proof step 11:
buf = buf0 + buf1, abs-nodes(buf1, m + # buf0, [], lax, weak), abs-padding(buf0), isempty(buf, 0, NODE_HEADER_SIZE) ⊦ (buf = mkbuf(0) ∨ abs-failed(buf) ∧ weak) ∧ lax = []

Rule argument

pos: left 2

Proof step 10 from proof abs-nodes-emptyheader-h (previous step)

User applied rule case distinction

And obtained the following new goals

Rule argument

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