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. 2015 Mar 6;12(104):20141226. doi: 10.1098/rsif.2014.1226

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© 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 2. — The logic of self-reproduction. An accurate self-reproducer (top) comprises the replicator R (blue outline) and the vehicle V (green outline)—containing the copier C and the constructor B. In the copy phase, C copies the replicator R − C[R] (red outline) acts as a constructor. In the construction phase, B executes the recipe in R to build a vehicle from generic resources N − B[R] (red outline) acts as a constructor. Finally (bottom), the copy of R and the newly constructed vehicle form the offspring.