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  2. Mirror image rule - Wikipedia

    en.wikipedia.org/wiki/Mirror_image_rule

    The English common law established the concepts of consensus ad idem, offer, acceptance and counter-offer. The leading case on counter-offer is Hyde v Wrench [1840]. [ 3 ] The phrase "Mirror-Image Rule" is rarely (if at all) used by English lawyers; but the concept remains valid, as in Gibson v Manchester City Council [1979], [ 4 ] and Butler ...

  3. Offer and acceptance - Wikipedia

    en.wikipedia.org/wiki/Offer_and_acceptance

    The "mirror image rule" states that if you are to accept an offer, you must accept an offer exactly, without modifications; if you change the offer in any way, this is a counter-offer that kills the original offer and the original offer cannot be accepted at a future time.

  4. Posting rule - Wikipedia

    en.wikipedia.org/wiki/Posting_rule

    An interesting implication of the operation of the posting rule is that an acceptance is complete once the letter of acceptance is posted; it makes no difference whether the offeror actually receives the letter. This was demonstrated in Byrne v Van Tienhoven (1880) 5 CPD 344. If a letter of acceptance were to be lost, acceptance has still taken ...

  5. Mirror image - Wikipedia

    en.wikipedia.org/wiki/Mirror_image

    A mirror image (in a plane mirror) is a reflected duplication of an object that appears almost identical, but is reversed in the direction perpendicular to the mirror surface. As an optical effect , it results from specular reflection off from surfaces of lustrous materials, especially a mirror or water .

  6. Method of images - Wikipedia

    en.wikipedia.org/wiki/Method_of_images

    The method of images (or method of mirror images) is a mathematical tool for solving differential equations, in which boundary conditions are satisfied by combining a solution not restricted by the boundary conditions with its possibly weighted mirror image. Generally, original singularities are inside the domain of interest but the function is ...

  7. Congruence (geometry) - Wikipedia

    en.wikipedia.org/wiki/Congruence_(geometry)

    In geometry, two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other. [ 1 ] More formally, two sets of points are called congruent if, and only if, one can be transformed into the other by an isometry , i.e., a combination of rigid motions , namely a ...

  8. Chirality - Wikipedia

    en.wikipedia.org/wiki/Chirality

    A chiral molecule is a type of molecule that has a non-superposable mirror image. The feature that is most often the cause of chirality in molecules is the presence of an asymmetric carbon atom. [16] [17] The term "chiral" in general is used to describe the object that is non-superposable on its mirror image. [18]

  9. Chirality (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Chirality_(mathematics)

    In geometry, a figure is chiral (and said to have chirality) if it is not identical to its mirror image, or, more precisely, if it cannot be mapped to its mirror image by rotations and translations alone. An object that is not chiral is said to be achiral. A chiral object and its mirror image are said to be enantiomorphs.