/FONT#1=BASL30/FONT#2=BASB30/FONT#3=NGR25/FONT#4=NGR20/FONT#5=BASI30
␈↓↓␈↓α␈↓β␈↓∧␈↓¬␈↓ ↓H
␈↓↓␈↓ ε
Oct 2, 1978␈↓ ↓H
␈↓ ↓H
␈↓ ↓H
␈↓ ↓H
Carl Helmers, Editor-in-Chief␈↓ ↓H
Byte Publications␈↓ ↓H
70 Main St.␈↓ ↓H
Peterborough NH, 03458␈↓ ↓H
␈↓ ↓H
Dear Carl:␈↓ ↓H
␈↓ ↓H
␈↓ ↓HAre␈α
you␈α
still␈α
interested␈α
in␈α
some␈α
articles␈α
on␈α
LISP?␈α
Are␈α
you␈α
still␈α
interested␈α
in␈αsome␈αarticles␈αon␈αLISP␈↓ ↓H
␈↓ ↓Hfrom␈α∂␈↓¬me␈↓↓?␈α∂I␈α∂am␈α∂resurrecting␈α∂my␈α∂"LISP-for-the-micros"␈α∂articles␈α∂and,␈α∂since␈α∂you␈α∂had␈α∂begun␈α∞work␈α∞on␈↓ ↓H
␈↓ ↓Hthem,␈α
thought␈α
you␈α
should␈α
have␈α
right␈α
of␈α
first␈α
refusal.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HI␈α∞can␈α∞assure␈α∞you␈α∞that␈α∞this␈α∞time␈α∞the␈α∞process␈α∞wil␈α∞be␈α∞smoother.␈α
Before,␈α
I␈α
was␈α
doing␈α
battle␈α
both␈α
with␈↓ ↓H
␈↓ ↓HMcGraw-Hill␈αand␈αHewlett-Packard.␈α(Hum,␈αI␈αwonder␈αif␈αI've␈αgot␈αsomething␈αagainst␈αcorporations␈αwith␈↓ ↓H
␈↓ ↓Hhypenated␈α
names?)␈α
McGraw-Hill␈α
decided␈α
to␈α
use␈α
my␈α
book␈α
and␈α
my␈α
knowledge␈α
as␈α
"an␈αexperiment␈αin␈↓ ↓H
␈↓ ↓Hcomputer␈αtypesetting".␈αOne␈αof␈αtheir␈αminions␈αwas␈αsupposed␈α
to␈α
take␈α
my␈α
machine-text,␈α
with␈α
instructions␈↓ ↓H
␈↓ ↓Hfrom␈αme,␈αand␈αdevelop␈αthe␈αtranslation␈αprocess;␈αhe␈αwas␈αa␈α"computer␈αexpert".␈αSix␈αmonths␈αlater␈αhe␈αwas␈↓ ↓H
␈↓ ↓Hstill␈αflying␈αaround␈αthe␈αcountry,␈αlooking␈αfor␈αa␈αsoftware␈αhouse␈αwhich␈αcould␈αwrite␈αthe␈αprogram;␈αit␈αsoon␈↓ ↓H
␈↓ ↓Hbecame␈αclear␈αthat␈αhe␈αhad␈αnot␈αeven␈αread␈αthe␈α
instructions␈α
I␈α
had␈α
prepared.␈α
More␈α
upsetting,␈α
it␈α
was␈α
clear␈↓ ↓H
␈↓ ↓Hthat␈α∞this␈α∞schedule␈α∞would␈α∞delay␈α
the␈α
publishing␈α
date␈α
to␈α
the␈α
next␈α
academic␈α
year.␈α
Therefore,␈α
the␈α
only␈↓ ↓H
␈↓ ↓Hway␈α∞it␈α∞would␈α∞get␈α∞done␈α∞was␈α∞if␈α∞I␈α∞did␈α∞it␈α∞myself␈α∞in␈α∞the␈α∞very␈α∞wee␈α
hours␈α
of␈α
the␈α
morning;␈α
that␈α
did␈α
not␈↓ ↓H
␈↓ ↓Hplease␈α
me␈α
at␈αall.␈αFinally,␈αI␈αwrote␈αthe␈αtypesetting␈αprogram␈αfor␈αMcGraw-Hill,␈αand␈αwas␈αassured␈αby␈αthe␈↓ ↓H
␈↓ ↓Hcompositor␈αthat␈αeverything␈αwas␈αok.␈αI␈αpunched␈αtwenty-four␈αboxes␈αof␈αpaper␈αtape,␈αonly␈α
to␈α
discover␈α
that␈↓ ↓H
␈↓ ↓Hthe␈α
compositor␈α
was␈α
unable␈α
to␈α
generate␈α
consistent␈α
output.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HSimultaneously,␈αI␈αwas␈αtrying␈αto␈αconvince␈αthe␈α"research␈αlab"␈αof␈αHP␈αthat␈αbatch-processing␈αsystems␈αare␈↓ ↓H
␈↓ ↓Hinferior␈αto␈αconversational␈αsystems;␈αthat␈α2400␈αbaud␈αglass␈αteletypes␈αare␈αnot␈αinteractive␈αdisplays;␈αthat␈α
an␈↓ ↓H
␈↓ ↓HHP3000␈α
is␈α
␈↓¬not␈↓↓␈α
a␈α
"machine␈α
like␈α
the␈α
PDP-10,␈α
but␈α
with␈α
16-bit␈α
words"␈α
(the␈α
manager␈α
of␈α
the␈α
advanced␈↓ ↓H
␈↓ ↓Hsoftware␈α⊂section␈α⊂actually␈α⊂said␈α⊂that␈α⊂to␈α⊂John␈α⊂McCarthy!);␈α⊂that␈α⊂if␈α⊂I␈α⊂was␈α⊂to␈α⊂build␈α∂a␈α∂machine␈α∂which␈↓ ↓H
␈↓ ↓Hexecuted␈αLISP␈αwell␈αand␈αwas␈αattractive␈αto␈αthe␈αAI␈αcommunity,␈α
the␈α
project␈α
would␈α
require␈α
a␈α
staff␈α
which␈↓ ↓H
␈↓ ↓Hunderstood␈α
these␈α
problems.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HThis␈α⊃is␈α⊃the␈α⊃kind␈α⊃of␈α⊃turmoil␈α⊃which␈α⊃you␈α⊃walked␈α⊃into;␈α⊃both␈α⊃problems␈α⊃have␈α⊃been␈α⊂resolved:␈α⊂I␈α⊂told␈↓ ↓H
␈↓ ↓HMcGraw-Hill␈α⊃to␈α⊃forget␈α⊃their␈α⊃"computer␈α⊂experiment"␈α⊂and␈α⊂use␈α⊂the␈α⊂XGP␈α⊂output;␈α⊂the␈α⊂book␈α⊂is␈α⊂now␈↓ ↓H
␈↓ ↓Havailable.␈αI␈αquit␈αat␈αHP,␈αand␈αI␈αam␈αnow␈αavailable␈αtoo.␈αNow␈αI␈αwould␈αlike␈αto␈αreturn␈αto␈αthe␈αpleasurable␈↓ ↓H
␈↓ ↓Hand␈α⊃important␈α⊃task␈α⊃of␈α⊃describing␈α⊃the␈α⊃benefits␈α⊃of␈α⊃LISP-like␈α⊃languages␈α⊃to␈α⊃the␈α⊂personal␈α⊂computer␈↓ ↓H
␈↓ ↓Hcrowd.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HI␈αhave␈αbeen␈αfollowing␈αthe␈αPascal␈αarticles␈αin␈αBYTE␈αwith␈αsome␈αinterest.␈αI␈αwould␈αlike␈αthe␈αopportunity␈↓ ↓H
␈↓ ↓Hto␈α
present␈α
my␈α
LISP␈α
philosophy␈α
as␈α
a␈α
contrasting␈α
position.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HIt␈α⊃seems␈α⊃to␈α⊃me␈α⊃that␈α⊃the␈α⊃Pascal-like␈α⊃languages␈α⊃do␈α⊃very␈α⊂little␈α⊂to␈α⊂reinforce␈α⊂the␈α⊂creative␈α⊂process␈α⊂of␈↓ ↓H
␈↓ ↓Halgorithm␈α⊗discovery␈α⊗and␈α⊗creation.␈α⊗They,␈α⊗like␈α⊗most␈α⊗traditional␈α⊗computer␈α∃languages,␈α∃are␈α∃more␈↓ ↓H
␈↓ ↓Hconcerned␈αwith␈αthe␈α␈↓¬execution␈↓↓␈αof␈αalready␈αconstructed␈αalgorithms.␈αThis␈αis␈αa␈αnatural␈αoutgrowth␈αof␈αtheir␈↓ ↓H
␈↓ ↓Hancestry:␈αa␈αnumerical␈αcomputational␈αera␈αin␈αwhich␈αthe␈αemphasis␈αwas␈αplaced␈αon␈αminimizing␈αcomputer␈↓ ↓H
␈↓ ↓Htime␈αat␈αthe␈αexpense␈αof␈αprogrammer␈αtime.␈αTimes␈αand␈αeconomics␈αhave␈αchanges.␈αComputers␈αare␈αcheap␈↓ ↓H
␈↓ ↓Hand␈αprogrammers␈αare␈αexpensive;␈αwe␈αneed␈αtechniques␈αto␈αspeed␈αthe␈αdevelopment␈αof␈αcorrect␈αprograms.␈↓ ↓H
␈↓ ↓HCertainly␈α∃the␈α∃verification␈α∀efforts␈α∀are␈α∀aimed␈α∀in␈α∀this␈α∀direction,␈α∀but␈α∀verification␈α∀typically␈α∀is␈α∀an␈↓ ↓H
␈↓ ↓Hafter-the-fact␈α⊃reconciliation␈α⊃of␈α⊃a␈α⊃completed␈α⊃algorithm␈α⊃versus␈α⊂some␈α⊂descriptive␈α⊂specification␈α⊂of␈α⊂its␈↓ ↓H
␈↓ ↓Hbehavior.␈α∪We␈α∪need␈α∪languages␈α∪which␈α∪support␈α∪the␈α∪creative␈α∪and␈α∪exploratory␈α∩phases␈α∩of␈α∩program␈↓ ↓H
␈↓ ↓Hdevelopment.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HExploratory␈αprogramming,␈αwhich␈αis␈αthe␈αhallmark␈αof␈αAI␈αand␈αwhich,␈αto␈αa␈αvery␈αlarge␈αextent,␈αoccurs␈αin␈↓ ↓H
␈↓ ↓Hthe␈αcreative␈αstages␈αof␈αany␈αprogramming␈αtask,␈αis␈αbest␈αdone␈αwith␈αan␈αun-typed␈α
interactive␈α
language␈α
like␈↓ ↓H
␈↓ ↓HLISP.␈α
Strong␈α
typed␈α
languages␈α
like␈α
Pascal␈α
only␈α
confuse␈α
and␈α
obfuscate␈α
the␈α
formulative␈α
stages.␈↓ ↓H
␈↓ ↓H
␈↓ ↓H
␈↓ ↓HWe␈α∪must␈α∪put␈α∪a␈α∪stronger␈α∪emphasis␈α∪on␈α∪the␈α∪education␈α∪of␈α∪programmers,␈α∩rather␈α∩than␈α∩restrict␈α∩the␈↓ ↓H
␈↓ ↓Hexpressive␈αpowers␈αof␈αthe␈αlanguages.␈αConsider␈αthe␈αtools␈αof␈αa␈αmore␈α
traditional␈α
craftsman:␈α
in␈α
the␈α
hands␈↓ ↓H
␈↓ ↓Hof␈αan␈αamateur␈αthose␈αtools␈αcan␈αbe␈αdeadly,␈αwhereas␈αthe␈αcraftsman␈αcan␈αdevelop␈αexquisite␈αobjects.␈αDoes␈↓ ↓H
␈↓ ↓Hone␈αpropose␈αthat␈αall␈αtools␈αbe␈αdulled␈αappropriately␈αso␈αthat␈αthe␈αamateurs␈αcannot␈αdo␈αthemselves␈α
injury?␈↓ ↓H
␈↓ ↓HNo,␈α⊂we␈α∂educate␈α∂them␈α∂in␈α∂the␈α∂proper␈α∂use␈α∂of,␈α∂and␈α∂respect␈α∂for,␈α∂the␈α∂instruments␈α∂and␈α∂expect␈α∂that␈α∂the␈↓ ↓H
␈↓ ↓Hcraftsman's␈αtool␈αremain␈αsharp.␈αThe␈αemphasis␈αis␈αproperly␈αplaced␈αon␈αthe␈αindividual.␈αI␈αdon't␈αadvocate␈↓ ↓H
␈↓ ↓Hthat␈α∞programmers's␈α
who␈α
produce␈α
buggy␈α
code␈α
be␈α
shot,␈α
but␈α
I␈α
do␈α
insist␈α
that␈α
we␈α
take␈α
better␈α
efforts␈α
to␈↓ ↓H
␈↓ ↓Heducate␈αour␈αpeople.␈α
In␈α
this␈α
regard,␈α
I␈α
find␈α
the␈α
Pascal␈α
approach␈α
a␈α
false␈α
temptress;␈α
do␈α
not␈α
be␈α
tempted␈α
to␈↓ ↓H
␈↓ ↓Hdull␈α∩the␈α∩tools␈α∩of␈α∩the␈α∩programmer␈α∩by␈α∩the␈α∩appealling␈α⊃arguments␈α⊃of␈α⊃fast␈α⊃parsing␈α⊃algorithms␈α⊃and␈↓ ↓H
␈↓ ↓Hefficient␈α⊂compilers;␈α⊂do␈α∂not␈α∂begin␈α∂to␈α∂confuse␈α∂education␈α∂with␈α∂the␈α∂mass-merchandizing␈α∂of␈α∂armies␈α∂of␈↓ ↓H
␈↓ ↓Hprogrammers␈α
whose␈α
competence␈α
is␈α
sealed␈α
in␈α
a␈α
cautious,␈α
uncreative␈α
world␈α
of␈α
dull␈α
tools.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HRather␈α∪be␈α∪seduced␈α∪by␈α∪LISP,␈α∪whose␈α∪bizarre␈α∪advocates␈α∪have␈α∪created␈α∩some␈α∩of␈α∩the␈α∩most␈α∩elegant␈↓ ↓H
␈↓ ↓Hcomputer␈α⊃related␈α⊃products.␈α⊂Not␈α⊂everyone␈α⊂should␈α⊂program␈α⊂in␈α⊂LISP;␈α⊂in␈α⊂fact,␈α⊂not␈α⊂everyone␈α⊂should␈↓ ↓H
␈↓ ↓Hprogram.␈αHowever␈αthe␈αAI␈αcommunity␈αis␈αthe␈αcraft␈α
of␈α
the␈α
tool␈α
builder;␈α
their␈α
tools␈α
are␈α
the␈α
sharpest␈α
and␈↓ ↓H
␈↓ ↓Hmost␈α⊂incisive␈α⊂of␈α⊂the␈α⊂computer␈α⊂field.␈α⊂It␈α⊂is␈α⊂this␈α⊂kind␈α⊂of␈α∂tool␈α∂which␈α∂should␈α∂appeal␈α∂to␈α∂the␈α∂personal␈↓ ↓H
␈↓ ↓Hcomputer␈αperson.␈αIt␈α
is␈α
not␈α
the␈α
elegance␈α
of␈α
BASIC␈α
which␈α
has␈α
made␈α
it␈α
the␈α
standard␈α
personal␈α
computer␈↓ ↓H
␈↓ ↓Hlanguage;␈αit␈αis␈αBASIC's␈αinteractive␈αnature,␈αallowing␈αquick␈αexperimentation␈αwith␈αprogramming␈αideas,␈↓ ↓H
␈↓ ↓Hwhich␈α
accounts␈α
for␈αits␈αlongevity.␈αMuch␈αof␈αthis␈αinteractive␈αflavor␈αcan␈αbe␈αgrafted␈αonto␈αan␈αPascal-like␈↓ ↓H
␈↓ ↓Hlanguage,␈α∞but␈α∞the␈α∞result␈α∞is␈α
much␈α
inferior␈α
to␈α
what␈α
one␈α
can␈α
expect␈α
from␈α
a␈α
true␈α
interactive␈α
language␈↓ ↓H
␈↓ ↓Hlike␈α
LISP.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HIn␈α
fact,␈α
the␈α
spirit␈α
which␈α
created␈αPascal␈αwas␈αopposed␈αto␈αinteractive␈αcomputation:␈αWirth,␈αin␈αthe␈α1969␈↓ ↓H
␈↓ ↓HSoftware␈αEngineering␈αConference␈αsaid␈α␈↓¬"I␈αwould␈αlike␈αto␈αdiscuss␈αthe␈αtrend␈αtowards␈αconversationality␈αin␈↓ ↓H
␈↓ ↓Hour␈αtools.␈αThere␈αhas␈αbeen,␈αsince␈αthe␈αdevelopment␈αof␈αtimesharing␈αand␈αon-line␈αconsoles,␈αa␈α
very␈α
hectic␈α
trend␈↓ ↓H
␈↓ ↓Htowards␈α⊃development␈α⊃of␈α⊂systems␈α⊂which␈α⊂allow␈α⊂the␈α⊂interactive␈α⊂development␈α⊂of␈α⊂programs.␈α⊂Now␈α⊂this␈α⊂is␈↓ ↓H
␈↓ ↓Hcertainly␈α⊃nice␈α⊃in␈α⊃a␈α⊃way,␈α⊃but␈α⊃it␈α⊂has␈α⊂its␈α⊂dangers,␈α⊂and␈α⊂I␈α⊂am␈α⊂particularly␈α⊂wary␈α⊂of␈α⊂them␈α⊂because␈α⊂this␈↓ ↓H
␈↓ ↓Hconversational␈αusage␈αhas␈αnot␈αonly␈αgained␈αacceptance␈αamong␈αsoftware␈αengineers␈αbut␈αalso␈αin␈αuniversities␈↓ ↓H
␈↓ ↓Hwhere␈α∞students␈α
are␈α
trained␈α
in␈α
programming.␈α
My␈α
worry␈α
is␈α
that␈α
the␈α
facility␈α
of␈α
quick␈α
response␈α
leads␈α
to␈↓ ↓H
␈↓ ↓Hsloppy␈αworking␈αhabits␈αand,␈αsince␈αthe␈αstudents␈αare␈αgoing␈αto␈αbe␈αour␈α
future␈α
software␈α
engineers,␈α
this␈α
might␈↓ ↓H
␈↓ ↓Hbe␈α
rather␈α
detrimental␈α
to␈α
the␈α
field␈α
as␈α
a␈α
whole".␈↓↓␈↓ ↓H
␈↓ ↓H
␈↓ ↓HWirth␈α
may␈α
have␈α
modified␈α
his␈α
position␈αsince␈αthen,␈αbut␈αwhen␈αPascal␈αwas␈αformulated,␈αhe␈αwas␈αnot␈αan␈↓ ↓H
␈↓ ↓Hadvocate␈αof␈αinteractive␈αprogramming.␈αMany␈αof␈αthe␈αdecisions␈αand␈αcompromises␈αof␈αPascal␈αare␈αa␈αresult␈↓ ↓H
␈↓ ↓Hof␈α
his␈α
view␈α
of␈α
computation.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HI␈α∞feel␈α∞it␈α∞is␈α∞important␈α∞that␈α∞the␈α∞personal␈α
computer␈α
users␈α
understand␈α
that␈α
they␈α
need␈α
not␈α
give␈α
up␈α
the␈↓ ↓H
␈↓ ↓Hinteractiveness␈α∂of␈α∂BASIC␈α∂to␈α∂gain␈α∂the␈α∂structure␈α∂and␈α∞portability␈α∞which␈α∞Pascal␈α∞is␈α∞advertising;␈α∞LISP␈↓ ↓H
␈↓ ↓Hoffers␈α⊃both.␈α⊂LISP␈α⊂is␈α⊂␈↓αnot␈↓↓␈α⊂a␈α⊂special␈α⊂purpose␈α⊂list-processing␈α⊂language,␈α⊂as␈α⊂MACSYMA's␈α⊂arithmetic,␈↓ ↓H
␈↓ ↓HTeitleman's␈α∞development␈α∞system,␈α
and␈α
Greenblatt's␈α
LISP␈α
machine␈α
demonstrate.␈α
Its␈α
compilers␈α
can␈α
be␈↓ ↓H
␈↓ ↓Has␈α
good␈α
as␈α
those␈α
of␈α
any␈α
other␈α
language;␈α
its␈α
development␈α
systems␈α
are␈α
far␈α
superior␈α
to␈αthose␈αof␈αother␈↓ ↓H
␈↓ ↓H(well-known)␈α∂languages;␈α∂it␈α∂can␈α∂be␈α∂used␈α∂as␈α∂an␈α∂effective␈α∂systems␈α∂programming␈α∂language,␈α∂as␈α∞well␈α∞as␈↓ ↓H
␈↓ ↓Hbeing␈α∞the␈α∞entry␈α∞point␈α∞for␈α∞all␈α∞of␈α
AI␈α
and␈α
much␈α
of␈α
the␈α
theory␈α
of␈α
computation.␈α
it␈α
is␈α
this␈α
content␈α
and␈↓ ↓H
␈↓ ↓Hphilosophy␈α
which␈α
I␈α
hope␈α
to␈α
elaborate␈α
in␈α
my␈α
articles.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HIt␈α∞is␈α∞particularly␈α∞important␈α∞to␈α∞influence␈α∞the␈α
personal␈α
computer␈α
advocate␈α
now,␈α
given␈α
the␈α
growth␈α
of␈↓ ↓H
␈↓ ↓HPascal-like␈α∞like␈α∞languages,␈α∞the␈α∞rising␈α∞specter␈α∞of␈α∞DOD-1.␈α∞I␈α∞expect␈α∞that␈α
the␈α
Pascal␈α
phenomenon␈α
will␈↓ ↓H
␈↓ ↓Hrun␈α∞its␈α∞course␈α∞like␈α∞the␈α∞New␈α∞Math␈α∞rage;␈α∞much␈α
will␈α
be␈α
learned,␈α
but␈α
the␈α
lessons␈α
will␈α
be␈α
expensive.␈α
I␈↓ ↓H
␈↓ ↓Hwould␈α⊂hope␈α∂that␈α∂my␈α∂articles␈α∂will␈α∂at␈α∂least␈α∂spare␈α∂the␈α∂personal␈α∂computer␈α∂groups␈α∂from␈α∂some␈α∂of␈α∂that␈↓ ↓H
␈↓ ↓Hmisery.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HOn␈α∂the␈α∂positive␈α∂side,␈α∂the␈α∂emergence␈α∂of␈α∂the␈α∂new␈α∂class␈α∂of␈α∂micro␈α∂computers␈α∞is␈α∞particularly␈α∞exciting:␈↓ ↓H
␈↓ ↓Hmicros␈αwith␈αthe␈αpower␈αof␈αa␈αmini.␈αThis␈αwill␈αopen␈αup␈αmany␈αnew␈αareas,␈αincluding␈αAI,␈αfor␈αthe␈αpersonal␈↓ ↓H
␈↓ ↓Hmachine.␈α⊃The␈α⊃new␈α⊂machines␈α⊂will␈α⊂support␈α⊂very␈α⊂substantial␈α⊂implementations␈α⊂of␈α⊂LISP;␈α⊂even␈α⊂today␈↓ ↓H
␈↓ ↓Hthere␈α⊂are␈α⊂versions␈α⊂of␈α⊂LISP␈α⊂for␈α⊂the␈α⊂Z-80,␈α⊂8080,␈α∂6800,␈α∂F8,␈α∂and␈α∂a␈α∂APPLE/BASIC␈α∂version.␈α∂BYTE␈↓ ↓H
␈↓ ↓Hreaders␈α
should␈α
be␈α
exposed␈α
to␈α
concepts␈α
in␈α
these␈α
implementations.␈↓ ↓H
␈↓ ↓H
␈↓ ↓HI␈αkept␈αthe␈αedited␈αmanuscript␈αwhich␈αyou␈αreturned␈αto␈αme;␈αI␈αam␈αready␈αto␈αrewrite␈α
that␈α
initial␈α
article␈α
and␈↓ ↓H
␈↓ ↓Hsupply␈α∃a␈α∃total␈α∃of␈α∃about␈α∃six,␈α∃covering␈α∀most␈α∀of␈α∀the␈α∀details␈α∀of␈α∀LISP␈α∀programming␈α∀and␈α∀micro␈↓ ↓H
␈↓ ↓Himplementations.␈α
I␈α
await␈α
your␈α
response.␈↓ ↓H
␈↓ ↓H
␈↓ ↓H
␈↓ ↓HI'm␈α
sorry␈α
that␈α
our␈α
past␈α
attempts␈α
at␈α
communication␈α
have␈α
been␈α
so␈α
noisy;␈α
I␈α
hope␈α
that␈α
we␈α
can␈α
try␈α
again.␈↓ ↓H
␈↓ ↓H␈↓ εW
␈↓ εW
Yours sincerely,␈↓ εW
␈↓ εW
␈↓ εW
␈↓ εW
John R. Allen␈↓ εW
18215 Bayview Dr.␈↓ εW
Los Gatos Ca. 95030␈↓ εW
408 353-2227␈↓ εW
␈↓ ↓H