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Proof step 3 from proof disk-layout-lpt-below-main (previous step)

lptlebs(mainareasize, LEB_SIZE) + 5 + n < m3, m1 = 1 ∧ m2 = 3 ∧ m3 = 5 ∨ m1 = 2 ∧ m2 = 4 ∧ m3 = 5 + lptlebs(mainareasize, LEB_SIZE) ⊦

User applied rule case distinction

And closed the goal!

Rule argument

pos: left 2

Additional information

Used simplifier rules: ⊦ m + n < m + n0 ↔ n < n0; (s)% ⊦ ¬ m < n → ¬ m + m0 < n; (s)%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic%c: ⊦ m + n = n + m; from specification nat-basic