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logicalmore about logical

logical


  4  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Logical  \Log"ic*al\,  a.  [Cf.  F.  logique  L.  logicus,  Gr  ?.] 
  1.  Of  or  pertaining  to  logic;  used  in  logic;  as  logical 
  subtilties  --Bacon. 
 
  2.  According  to  the  rules  of  logic;  as  a  logical  argument  or 
  inference;  the  reasoning  is  logical.  --Prior. 
 
  3.  Skilled  in  logic;  versed  in  the  art  of  thinking  and 
  reasoning;  as  he  is  a  logical  thinker.  --Addison. 
 
  From  WordNet  r  1.6  [wn]: 
 
  logical 
  adj  1:  capable  of  or  reflecting  the  capability  for  correct  and 
  valid  reasoning;  "a  logical  mind"  [ant:  {illogical}] 
  2:  in  accordance  with  reason  or  logic;  "a  logical  conclusion" 
  [syn:  {legitimate}] 
  3:  marked  by  an  orderly,  logical,  and  aesthetically  consistent 
  relation  of  parts  "a  logical  argument";  "the  orderly 
  presentation"  [syn:  {consistent},  {ordered},  {orderly}] 
  4:  based  on  known  statements  or  events  or  conditions;  "rain  was 
  a  logical  expectation,  given  the  time  of  year" 
  5:  capable  of  thinking  and  expressing  yourself  in  a  clear  and 
  consistent  manner;  "a  lucid  thinker";  "she  was  more 
  coherent  than  she  had  been  just  after  the  accident"  [syn: 
  {coherent},  {lucid}] 
 
  From  Jargon  File  (4.2.3,  23  NOV  2000)  [jargon]: 
 
  logical  adj  [from  the  technical  term  `logical  device', 
  wherein  a  physical  device  is  referred  to  by  an  arbitrary  `logical'  name] 
  Having  the  role  of  If  a  person  (say,  Les  Earnest  at  SAIL)  who  had  long 
  held  a  certain  post  left  and  were  replaced,  the  replacement  would  for  a 
  while  be  known  as  the  `logical'  Les  Earnest.  (This  does  not  imply  any 
  judgment  on  the  replacement.)  Compare  {virtual}. 
 
  At  Stanford,  `logical'  compass  directions  denote  a  coordinate 
  system  in  which  `logical  north'  is  toward  San  Francisco,  `logical  west' 
  is  toward  the  ocean,  etc.,  even  though  logical  north  varies  between 
  physical  (true)  north  near  San  Francisco  and  physical  west  near  San  Jose. 
  (The  best  rule  of  thumb  here  is  that  by  definition,  El  Camino  Real  always 
  runs  logical  north-and-south.)  In  giving  directions,  one  might  say: 
  "To  get  to  Rincon  Tarasco  restaurant,  get  onto  {El  Camino  Bignum}  going 
  logical  north."  Using  the  word  `logical'  helps  to  prevent  the  recipient 
  from  worrying  about  that  the  fact  that  the  sun  is  setting  almost  directly 
  in  front  of  him  The  concept  is  reinforced  by  North  American  highways 
  which  are  almost,  but  not  quite,  consistently  labeled  with  logical  rather 
  than  physical  directions.  A  similar  situation  exists  at  MIT:  Route  128 
  (famous  for  the  electronics  industry  that  has  grown  up  along  it)  is  a 
  3-quarters  circle  surrounding  Boston  at  a  radius  of  10  miles,  terminating 
  near  the  coastline  at  each  end  It  would  be  most  precise  to  describe  the 
  two  directions  along  this  highway  as  `clockwise'  and  `counterclockwise', 
  but  the  road  signs  all  say  north"  and  "south",  respectively.  A  hacker 
  might  describe  these  directions  as  `logical  north'  and  `logical  south', 
  to  indicate  that  they  are  conventional  directions  not  corresponding  to 
  the  usual  denotation  for  those  words  (If  you  went  logical  south  along 
  the  entire  length  of  route  128,  you  would  start  out  going  northwest, 
  curve  around  to  the  south,  and  finish  headed  due  east,  passing  along  one 
  infamous  stretch  of  pavement  that  is  simultaneously  route  128  south  and 
  Interstate  93  north,  and  is  signed  as  such!) 
 
 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  logical 
 
  (From  the  technical  term  "logical  device",  wherein  a  physical 
  device  is  referred  to  by  an  arbitrary  logical"  name)  Having 
  the  role  of  If  a  person  (say,  Les  Earnest  at  SAIL)  who  had 
  long  held  a  certain  post  left  and  were  replaced,  the 
  replacement  would  for  a  while  be  known  as  the  logical"  Les 
  Earnest.  (This  does  not  imply  any  judgment  on  the 
  replacement). 
 
  Compare  {virtual}. 
 
  At  Stanford,  logical"  compass  directions  denote  a  coordinate 
  system  in  which  "logical  north"  is  toward  San  Francisco, 
  "logical  west"  is  toward  the  ocean,  etc.,  even  though  logical 
  north  varies  between  physical  (true)  north  near  San  Francisco 
  and  physical  west  near  San  Jose.  (The  best  rule  of  thumb  here 
  is  that  by  definition,  El  Camino  Real  always  runs  logical 
  north-and-south.)  In  giving  directions,  one  might  say:  "To 
  get  to  Rincon  Tarasco  restaurant,  get  onto  {El  Camino  Bignum} 
  going  logical  north."  Using  the  word  logical"  helps  to 
  prevent  the  recipient  from  worrying  about  that  the  fact  that 
  the  sun  is  setting  almost  directly  in  front  of  him  The 
  concept  is  reinforced  by  North  American  highways  which  are 
  almost,  but  not  quite,  consistently  labelled  with  logical 
  rather  than  physical  directions. 
 
  A  similar  situation  exists  at  MIT:  Route  128  (famous  for  the 
  electronics  industry  that  has  grown  up  along  it)  is  a 
  3-quarters  circle  surrounding  Boston  at  a  radius  of  10  miles, 
  terminating  near  the  coastline  at  each  end  It  would  be  most 
  precise  to  describe  the  two  directions  along  this  highway  as 
  clockwise"  and  "counterclockwise",  but  the  road  signs  all  say 
  north"  and  "south",  respectively.  A  hacker  might  describe 
  these  directions  as  "logical  north"  and  "logical  south",  to 
  indicate  that  they  are  conventional  directions  not 
  corresponding  to  the  usual  denotation  for  those  words  (If 
  you  went  logical  south  along  the  entire  length  of  route  128, 
  you  would  start  out  going  northwest,  curve  around  to  the 
  south,  and  finish  headed  due  east,  passing  along  one  infamous 
  stretch  of  pavement  that  is  simultaneously  route  128  south  and 
  Interstate  93  north,  and  is  signed  as  such!) 
 
  [{Jargon  File}] 
 
  (1995-01-24) 
 
 




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