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Proof step 22 from proof divi-sub (previous step)

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

User applied rule cut formula

And obtained the following new goals

Proof step 23:
n < n2, m * n = n1 + m * n2 ⊦ ∃ n0. m * n0 = n1
Proof step 24:
m * n = n1 + m * n2 ⊦ n < n2, ∃ n0. m * n0 = n1

Rule argument

fma: n < n2

Additional information

Used formulas: n < n2