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Proof step 4 from proof inv-write-echdr (previous step)

pebs[m0] = mkpeb(buf, m, boolvar), ¬ boolvar, m = 0, aehdr.valid?, m0 < # pebs, mtd-cons(pebs) ⊦ ⟪ubi_io_write_echdr#(m0, aehdr, EB_PAGE_SIZE; pebs; err)⟫ mtd-cons(pebs)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
pebs[m0] = mkpeb(buf, 0, false), aehdr.valid?, m0 < # pebs, mtd-cons(pebs) ⊦ ⟪ubi_io_write_echdr#(m0, aehdr, EB_PAGE_SIZE; pebs; err)⟫ mtd-cons(pebs)

Proof step 4 from proof inv-write-echdr (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information