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Proof step 13 from proof divi-sub (previous step)

m * n = m * n2 + n0 ⊦ ∃ n1. m * n1 = n0

User applied rule cut formula

And obtained the following new goals

Proof step 14:
n < n2, m * n = m * n2 + n0 ⊦ ∃ n1. m * n1 = n0
Proof step 15:
m * n = m * n2 + n0 ⊦ n < n2, ∃ n1. m * n1 = n0

Rule argument

fma: n < n2

Additional information

Used formulas: n < n2