if the following are true:

• instruction #4 is add dst=3 src1=1 src2=2
• the PC at time 10 = 4
• value of cell 4 at time 10 = 1

then value of cell 4 at time 11 = 1

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• value of cell 4 at time 11 = 1,

  if the following are true:

  • a = b
  • b = c

  then a = c

  • value of cell 4 at time 11 = value of cell 4 at time 10,

    if the following are true:

    • a = b
    • a = c

    then b = c

    • value of cell 4 at time (10 + 1) = value of cell 4 at time 11,

      if 10 + 1 = 11, then value of cell 4 at time (10 + 1) = value of cell 4 at time 11

      • 10 + 1 = 11, 10 + 1 = 11
    • value of cell 4 at time (10 + 1) = value of cell 4 at time 10,

      if the following are true:

      • instruction #i is add dst=d src1=s1 src2=s2
      • the PC at time t = i
      • not (other = d)

      then value of cell other at time (t + 1) = value of cell other at time t

      • instruction #4 is add dst=3 src1=1 src2=2
      • the PC at time 10 = 4
      • not (4 = 3), not (4 = 3)
  • value of cell 4 at time 10 = 1