# On the concreteness of quantum logics

Pavel Pták; John David Maitland Wright

Aplikace matematiky (1985)

- Volume: 30, Issue: 4, page 274-285
- ISSN: 0862-7940

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topPták, Pavel, and Wright, John David Maitland. "On the concreteness of quantum logics." Aplikace matematiky 30.4 (1985): 274-285. <http://eudml.org/doc/15405>.

@article{Pták1985,

abstract = {It is shown that for any quantum logic $L$ one can find a concrete logic $K$ and a surjective homomorphism $f$ from $K$ onto $L$ such that $f$ maps the centre of $K$ onto the centre of $L$. Moreover, one can ensure that each finite set of compatible elements in $L$ is the image of a compatible subset of $K$. This result is “best possible” - let a logic $L$ be the homomorphic image of a concrete logic under a homomorphism such that, if $F$ is a finite subset of the pre-image of a compatible subset of $L$, then $F$ is compatible. Then $L$ must be concrete. In the second part one considers embeddings into concrete logics. It is shown that any concrete logic can be embedded into a concrete logic with preassigned centre and an abundance of two-valued measures. Finally, one proves that an arbitrary logic can be mapped into a concrete logic by a centrally additive mapping which preserves the ordering and complementation.},

author = {Pták, Pavel, Wright, John David Maitland},

journal = {Aplikace matematiky},

keywords = {orthomodular lattice; orthomodular poset; centres; orthocomplemented posets; concrete logics; orthomodular lattice; orthomodular poset; centres; orthocomplemented posets; concrete logics},

language = {eng},

number = {4},

pages = {274-285},

publisher = {Institute of Mathematics, Academy of Sciences of the Czech Republic},

title = {On the concreteness of quantum logics},

url = {http://eudml.org/doc/15405},

volume = {30},

year = {1985},

}

TY - JOUR

AU - Pták, Pavel

AU - Wright, John David Maitland

TI - On the concreteness of quantum logics

JO - Aplikace matematiky

PY - 1985

PB - Institute of Mathematics, Academy of Sciences of the Czech Republic

VL - 30

IS - 4

SP - 274

EP - 285

AB - It is shown that for any quantum logic $L$ one can find a concrete logic $K$ and a surjective homomorphism $f$ from $K$ onto $L$ such that $f$ maps the centre of $K$ onto the centre of $L$. Moreover, one can ensure that each finite set of compatible elements in $L$ is the image of a compatible subset of $K$. This result is “best possible” - let a logic $L$ be the homomorphic image of a concrete logic under a homomorphism such that, if $F$ is a finite subset of the pre-image of a compatible subset of $L$, then $F$ is compatible. Then $L$ must be concrete. In the second part one considers embeddings into concrete logics. It is shown that any concrete logic can be embedded into a concrete logic with preassigned centre and an abundance of two-valued measures. Finally, one proves that an arbitrary logic can be mapped into a concrete logic by a centrally additive mapping which preserves the ordering and complementation.

LA - eng

KW - orthomodular lattice; orthomodular poset; centres; orthocomplemented posets; concrete logics; orthomodular lattice; orthomodular poset; centres; orthocomplemented posets; concrete logics

UR - http://eudml.org/doc/15405

ER -

## References

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