Non-interference and reciprocal adaptation

If one entity is adapted to a second then the second is adapted to the first, if x is adapted to y then y is adapted to x: Axy⊃Ayx — x and y are adapted to each other. This is reciprocal adaptation. In the phytoplankton of the ocean species do not interfere with each other, nor do individual cells interfere with each other. So x and y are adapted to each other if and only if (≡) they do not interfere with each other, (1) (Axy⊃Ayx)≡(∼Ixy⊃∼Iyx) — whether cell x is paired with cell y, or species x is paired with species y. But ‘≡’ means much more than ‘if and only if’; ‘≡’ means that x and y are adapted and (·) uninterfering to each other or (∨) they are not (∼) wholly adapted and not wholly uninterfering; (2): [(Axy⊃Ayx)·(∼Ixy⊃∼Iyx)]∨{(Axy·∼Ayx)·(∼Ixy·Iyx)]. Thus (1)≡(2). In (2) to the right of ‘or’ (‘∨’) x is adapted to y but y is not (‘∼’) adapted to x as x is not interfering to y but y is interfering to x. And this is the case among shore organisms where one species in interacting with a second is uninterfering and adapted compared to the aggressive second species that is interfering and unadapted to the first. The variables x and y are abstract as they take on values and are absorbed into the concrete entities first of the seaʹs phytoplankton species and then the shoreʹs species. The equivalence of (1) and (2) is valid. Validity makes the physicality of sea and shore cohere. Validity, metaphoricly, holds nature together.