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Proof step 19 from proof sis-pos-low (previous step)

fillsgn(17, int2bits(j)) ≠ [], 32767 < 65536 * i0 + j, j ≤ 32767, 0 < 65536 * i0 + j, 0 ≤ j, 0 ≤ i0, 0 < i0 ⊦ 16 = (# fillsgn(17, int2bits(j)))-1, s2i(i2s(bits2int(lastn(16, int2bits(i0) + fillsgn(17, int2bits(j)).rest)))) = j

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: ⊦ i + j = j + i;% ⊦ i * j = j * i;% ⊦ n -1 = n - 1;