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_{i}where both twins start together and at rest with respect to each other. Frame F

_{L}moving at a speed v in the negative x direction and Frame F

_{R}moving at a speed v in the positive x direction.

Both twins zero their watches and start accelerating away from each other with acceleration -a and +a respectively. They do this until one year elapses on their local clock. They then coast for one year on their local clock. They then accelerate with rate +a and -a respectively for one year on their local clock. Then they accelerate with a rate of +a and -a respectively for one year local time. They then coast for one year local time. They then accelerate with a rate -a and +a respectively for one year local time. They are now at the same (almost the same, not exactly on top of each other) place. They both read six years on their own clock and they both read six years on the others clock.

Yes?