If the coordinates of two of the particles are interchanged, the wave function must remain unaltered or, at most, undergo a change of sign; the change of sign is permitted because it is Ψ2 that occurs in the physical interpretation of the wave function.
If a portion of Act IV could be interchanged with a portion of Act II without loss of effect, the principle of development has not been observed, for then the material occurring in between would not have made any difference.
In set theory, the relations "contained in" and "contains" can be interchanged, with the union becoming the intersection and vice-versa.
Thus, the prepositions bet ("in") and kaf ("like") are interchanged in the Masoretic and Dead Sea Scroll texts of Isaiah.
Strictly speaking, the term metheglin (from the Welsh meddyglyn, "physician," for the drink's reputed medicinal powers) refers only to spiced mead, made with the addition of spices and herbs such as cloves, ginger, rosemary, hyssop, and thyme; often, however, the terms are interchanged.
Resonance is related to the requirement that the wave function for two or more identical particles must have definite symmetry properties with respect to the coordinates of those particles it must have plus or minus the same value (symmetric or antisymmetric, respectively) when those particles are interchanged.
With the Moon considered as a world, rather than just a disk moving across the sky, east and west are interchanged.
The supply and take-up reels were then interchanged in the camera, and the other side was exposed in the other direction.
Other instrumental forms of the period, the canzona and fantasia, closely resembled the ricercare, particularly in the use of melodic imitation, and the names were often interchanged.
Counterchange designs heraldic, floral, or geometric in motif were introduced where the ground colour and design colour were interchanged.
It is typically fitted with a rotating turret that permits objectives of different powers to be interchanged with the assurance that the image position will be maintained.
