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Proof step 9 from proof sis-pos-low (previous step)

0 < i0, 0 ≤ i0, 0 ≤ j, 0 < i0 * 65536 + j, j ≤ 32767, 32767 < i0 * 65536 + j ⊦ s2i(i2s(bits2int(lastn(16, int2bits(i0 * 65536 + j))))) = j

User applied rule cut formula

And obtained the following new goals

Proof step 10:
65536 = 2 ^ 16, 0 < i0, 0 ≤ i0, 0 ≤ j, 0 < i0 * 65536 + j, j ≤ 32767, 32767 < i0 * 65536 + j ⊦ s2i(i2s(bits2int(lastn(16, int2bits(i0 * 65536 + j))))) = j

Rule argument

fma: 65536 = 2 ^ 16

Additional information

Used formulas: 65536 = 2 ^ 16