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Proof step 13 from proof inv-write-echdr (previous step)

pebs[m0] = mkpeb(buf0, 0, false), buf = mkbuf(EB_PAGE_SIZE), aehdr.valid?, m0 < # pebs, mtd-cons(pebs) ⊦ ∀ buf, err. (err = ESUCCESS ∨ ⌊err⌋ ) ∧ # buf = EB_PAGE_SIZE ∧ (err = ESUCCESS → is-encoded(echdr(aehdr.ec), buf)) → ⟪if err = ESUCCESS then mtd_asm_write#(m0, 0, 0, EB_PAGE_SIZE, buf; pebs; err)⟫ mtd-cons(pebs)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 14:
# buf1 = EB_PAGE_SIZE, pebs[m0] = mkpeb(buf0, 0, false), aehdr.valid?, m0 < # pebs, mtd-cons(pebs), err = ESUCCESS → is-encoded(echdr(aehdr.ec), buf1), err = ESUCCESS ∨ ⌊err⌋ ⊦ ⟪if err = ESUCCESS then mtd_asm_write#(m0, 0, 0, EB_PAGE_SIZE, buf1; pebs; err)⟫ mtd-cons(pebs)

Proof step 13 from proof inv-write-echdr (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information