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Proof step 2 from proof middle-coef-not-one-01 (previous step)

binom_coef(2 * i, i) < 2, 0 < i ⊦

User applied rule cut formula

And obtained the following new goals

Proof step 3:
binom_coef(2 * i, i) < 2, 0 < i ⊦ i = 1

Rule argument

fma: i = 1

Additional information

Used simplifier rules: coef-one: ⊦ 0 < i → binom_coef(i, 1) = i;%associativity: ⊦ i * j * j0 = (i * j) * j0; from specification int-mult%commutativity: ⊦ i * j = j * i; from specification int-mult Used formulas: i = 1