Juergen,
Here is a recreate

      )load APL2_INTRO_sav
SAVED 2014-11-04 -2:02:18 (GMT-4)
      V
 HER  HE
 YOU  ME
      )wsid apl2_intro_save_after_error
WAS APL2_INTRO
      )si
⋆
      )wsid
IS apl2_intro_save_after_error
      2 2⊃V
RANK ERROR
      2 2⊃V
      ^   ^
      )si
⋆
⋆
      )siv
⋆
⋆
      ⎕em
RANK ERROR
      2 2⊃V
      ^   ^
      )save


====================================================
SEGMENTATION FAULT
thread: 0xb7789700
thread_contexts_count: 1
busy_worker_count:     0
active_core_count:     1
thread # 0:      0xb7789700 pool sema:  0 RUN  job:   0 no-name


----------------------------------------
-- Stack trace at main.cc:165
----------------------------------------
0x43195865 __libc_start_main
0x8085ca8  main
0x81972f5   Workspace::immediate_execution(bool)
0x80ca008    Command::process_line()
0x80c9f28     Command::process_line(UCS_string&)
0x80c9972      Command::do_APL_command(std::ostream&, UCS_string&)
0x8199abe       Workspace::save_WS(std::ostream&, std::vector<UCS_string,
std::allocator<UCS_string> >&)
0x80904b2        XML_Saving_Archive::save()
0x808cd34         XML_Saving_Archive::save_SI_entry(StateIndicator const&)
0x808ca96          XML_Saving_Archive::save_prefix(Prefix const&)
0x808c98b           XML_Saving_Archive::save_token_loc(Token_loc const&)
0x808c3f9            XML_Saving_Archive::emit_token_val(Token const&)
0xffffffff             @@@@
0x80ed96b
========================================
====================================================

Goodbye.

Process apl exited abnormally with code 3


On Wed, Nov 5, 2014 at 11:36 AM, Juergen Sauermann <
juergen.sauerm...@t-online.de> wrote:

>  Hi,
>
> what I can see is that saving of an SI entry fails.
> The entry was caused by something like this in immediate execution:
>
> *      V←(2 3⍴'HERYOU') (2 2⍴'HEME')*
> *      2 2⊃V*
> *RANK ERROR *
> *      2 2⊃V*
> *      ^   ^*
>
> The problem is that if I *)**SAVE* that then it works fine and and I get
>
> *      <Parser assign-pending="0" lookahead-high="2">*
> *        <Token pc="2" tag="4107070F" vid="3"/>*
> *        <Token pc="1" tag="50020907" fun-id="5002"/>*
> *        <Token pc="0" tag="4105070F" vid="2"/>*
> *      </Parser>*
>
> in my *.xml* file, which is almost the same as Colin's file except that
> *pc="2**"* in my case and *pc="0"* in Colin's file:
>
> *      <Parser assign-pending="0" lookahead-high="2">*
> *        <Token pc="0" tag="4105070F" vid="51"/>*
> *<end**-**of-file>*
>
> The output lines are written with *std::endl*, which is supposed to also
> do *std::flush*. Therefore output buffering
> should not matter. I rather suspect that the token at *pc="1" *was
> corrupt (also because *lookahead-high="**2"* does
> not quite fit to *pc**=**"0"* in the file).
>
> /// Jürgen
>
>
>
>  On 11/05/2014 03:44 PM, Blake McBride wrote:
>
> Perhaps the truncation point of the xml file may point towards the )SAVE
> problem.  Also, perhaps turning off IO buffering during a )SAVE will help
> make the resulting xml file more indicative of the error on early
> terminations.
>
>  Just some ideas.
>
>  Thanks.
>
>  Blake
>
>
> On Wed, Nov 5, 2014 at 8:03 AM, Juergen Sauermann <
> juergen.sauerm...@t-online.de> wrote:
>
>>  Hi Colin,
>>
>> thanks.  The assertion on *)LOAD* was caused by the *.xml* file being
>> truncated.
>>
>> I have changed the *)LOAD *command to print a message when it detects a
>> truncated *.xml* file.
>> I also changed the *)COPY *command to deal with truncated *.xml* files,
>> provided that the truncation
>> happens late in the file (like in your case). You should now be able to
>> *)COPY* the broken *.xml* file, *SVN 503*.
>>
>> The root cause - the failed *)SAVE* - is not fixed yet. For that I would
>> need more information such as
>> the printout when the *)SAVE* failed.
>>
>> /// Jürgen
>>
>>
>>   On 11/05/2014 03:07 AM, Colin Verrilli wrote:
>>
>>  I'm getting this assertion failure on a workspace )load
>> I can't )copy it either
>> The previous )save crashed also
>>
>>
>>   This program is free software, and you are welcome to redistribute it
>>          according to the GNU Public License (GPL) version 3 or later.
>>
>>       )load APL2_INTRO
>>
>>
>> ==============================================================================
>> Assertion failed: idx < items_valid
>> in Function:      operator[]
>> in file:          Simple_string.hh:136
>>
>>  Call stack:
>>
>>  ----------------------------------------
>> -- Stack trace at Simple_string.hh:136
>> ----------------------------------------
>> 0x43195865 __libc_start_main
>> 0x8085ca8  main
>> 0x81972f5   Workspace::immediate_execution(bool)
>> 0x80ca008    Command::process_line()
>> 0x80c9f28     Command::process_line(UCS_string&)
>> 0x80c979f      Command::do_APL_command(std::ostream&, UCS_string&)
>> 0x819a759       Workspace::load_WS(std::ostream&, std::vector<UCS_string,
>> std::allocator<UCS_string> > const&, UCS_string&)
>> 0x8091dc8        XML_Loading_Archive::read_Workspace()
>> 0x808efcc         XML_Loading_Archive::read_StateIndicator()
>> 0x808e9e8          XML_Loading_Archive::read_Parsers(StateIndicator&)
>> 0x80d297e           throw_apl_error(ErrorCode, char const*)
>> 0x8151835            StateIndicator::update_error_info(Error&)
>> 0x80d3f96             Executable::set_error_info(Error&, Function_PC2)
>> const
>> 0x80837e5
>> 0x809434a               do_Assert(char const*, char const*, char const*,
>> int)
>> ========================================
>>
>>  SI stack:
>>
>>  Depth:    0
>> Exec:     0x8b41a48
>> Safe ex:  no
>> Pmode:    ◊  2 2⊃V
>> PC:       0
>>
>> ==============================================================================
>> Assertion failed: idx < items_valid
>> in Function:      operator[]
>> in file:          Simple_string.hh:136
>>
>>  Call stack:
>> *** do_Assert() called recursively ***
>>
>> ==============================================================================
>> *** immediate_execution() caught other exception ***
>>
>>
>>
>
>
<?xml version='1.0' encoding='UTF-8' standalone='yes'?>

<!DOCTYPE Workspace
[
    <!ELEMENT Workspace (Value*,Ravel*,SymbolTable,Symbol*,StateIndicator)>
    <!ATTLIST Workspace  wsid     CDATA #REQUIRED>
    <!ATTLIST Workspace  year     CDATA #REQUIRED>
    <!ATTLIST Workspace  month    CDATA #REQUIRED>
    <!ATTLIST Workspace  day      CDATA #REQUIRED>
    <!ATTLIST Workspace  hour     CDATA #REQUIRED>
    <!ATTLIST Workspace  minute   CDATA #REQUIRED>
    <!ATTLIST Workspace  second   CDATA #REQUIRED>
    <!ATTLIST Workspace  timezone CDATA #REQUIRED>

        <!ELEMENT Value (#PCDATA)>
        <!ATTLIST Value flg    CDATA #REQUIRED>
        <!ATTLIST Value vid    CDATA #REQUIRED>
        <!ATTLIST Value parent CDATA #IMPLIED>
        <!ATTLIST Value rk     CDATA #REQUIRED>
        <!ATTLIST Value sh-0   CDATA #IMPLIED>
        <!ATTLIST Value sh-1   CDATA #IMPLIED>
        <!ATTLIST Value sh-2   CDATA #IMPLIED>
        <!ATTLIST Value sh-3   CDATA #IMPLIED>
        <!ATTLIST Value sh-4   CDATA #IMPLIED>
        <!ATTLIST Value sh-5   CDATA #IMPLIED>
        <!ATTLIST Value sh-6   CDATA #IMPLIED>
        <!ATTLIST Value sh-7   CDATA #IMPLIED>

        <!ELEMENT Ravel (#PCDATA)>
        <!ATTLIST Ravel vid    CDATA #REQUIRED>
        <!ATTLIST Ravel cells  CDATA #REQUIRED>

        <!ELEMENT SymbolTable (Symbol*)>
        <!ATTLIST SymbolTable size CDATA #REQUIRED>

            <!ELEMENT Symbol (unused-name|Variable|Function|Label|Shared-Variable)*>
            <!ATTLIST Symbol name       CDATA #REQUIRED>
            <!ATTLIST Symbol stack-size CDATA #REQUIRED>

                <!ELEMENT unused-name EMPTY>

                <!ELEMENT Variable (#PCDATA)>
                <!ATTLIST Variable vid CDATA #REQUIRED>

                <!ELEMENT Function (UCS)>

                <!ELEMENT Label (#PCDATA)>
                <!ATTLIST Label value CDATA #REQUIRED>

                <!ELEMENT Shared-Variable (#PCDATA)>
                <!ATTLIST Shared-Variable key CDATA #REQUIRED>

        <!ELEMENT UCS (#PCDATA)>
        <!ATTLIST UCS uni CDATA #REQUIRED>

        <!ELEMENT StateIndicator (SI-entry*)>
        <!ATTLIST StateIndicator levels CDATA #REQUIRED>

            <!ELEMENT SI-entry ((Execute|Statements|UserFunction),Parser+)>
            <!ATTLIST SI-entry level     CDATA #REQUIRED>
            <!ATTLIST SI-entry pc        CDATA #REQUIRED>
            <!ATTLIST SI-entry line      CDATA #REQUIRED>

                <!ELEMENT Statements (UCS)>

                <!ELEMENT Execute (UCS)>

                <!ELEMENT UserFunction (#PCDATA)>
                <!ATTLIST UserFunction ufun-name       CDATA #REQUIRED>
                <!ATTLIST UserFunction symbol-level    CDATA #REQUIRED>
                <!ATTLIST UserFunction creation-time   CDATA #IMPLIED>
                <!ATTLIST UserFunction exec-properties CDATA #IMPLIED>

                <!ELEMENT Parser (Token*)>
                <!ATTLIST Parser assign-pending CDATA #REQUIRED>
                <!ATTLIST Parser lookahead-high CDATA #REQUIRED>
                    <!ELEMENT Token (#PCDATA)>
                    <!ATTLIST Token pc           CDATA #REQUIRED>
                    <!ATTLIST Token tag          CDATA #REQUIRED>
                    <!ATTLIST Token char         CDATA #IMPLIED>
                    <!ATTLIST Token int          CDATA #IMPLIED>
                    <!ATTLIST Token float        CDATA #IMPLIED>
                    <!ATTLIST Token real         CDATA #IMPLIED>
                    <!ATTLIST Token imag         CDATA #IMPLIED>
                    <!ATTLIST Token sym          CDATA #IMPLIED>
                    <!ATTLIST Token line         CDATA #IMPLIED>
                    <!ATTLIST Token vid          CDATA #IMPLIED>
                    <!ATTLIST Token index        CDATA #IMPLIED>
                    <!ATTLIST Token fun-id       CDATA #IMPLIED>
                    <!ATTLIST Token ufun-name    CDATA #IMPLIED>
                    <!ATTLIST Token symbol-level CDATA #IMPLIED>
                    <!ATTLIST Token comment  CDATA #IMPLIED>

]>


    <!-- hour/minute/second is )SAVE time in UTC (aka. GMT).
         timezone is offset to UTC in seconds.
         local time is UTC + offset -->
<Workspace wsid="apl2_intro_save_after_error" year="2014" month="11" day="6"
           hour="2" minute="21" second="33" timezone="-14400"
           saving_SVN="8798">

  <Value flg="400" vid="0" parent="2" rk="2" sh-0="2" sh-1="2"/>
  <Value flg="400" vid="1" parent="2" rk="2" sh-0="2" sh-1="3"/>
  <Value flg="400" vid="2" parent="-1" rk="1" sh-0="2"/>
  <Value flg="400" vid="3" parent="-1" rk="1" sh-0="2"/>
  <Value flg="400" vid="4" parent="-1" rk="0"/>
  <Value flg="400" vid="5" parent="-1" rk="0"/>
  <Value flg="400" vid="6" parent="-1" rk="0"/>
  <Value flg="400" vid="7" parent="-1" rk="0"/>
  <Value flg="400" vid="8" parent="-1" rk="0"/>
  <Value flg="400" vid="9" parent="-1" rk="0"/>
  <Value flg="400" vid="10" parent="-1" rk="1" sh-0="0"/>
  <Value flg="400" vid="11" parent="-1" rk="0"/>
  <Value flg="400" vid="12" parent="-1" rk="1" sh-0="6"/>
  <Value flg="400" vid="13" parent="-1" rk="0"/>
  <Value flg="400" vid="14" parent="-1" rk="0"/>
  <Value flg="400" vid="15" parent="-1" rk="1" sh-0="0"/>
  <Value flg="400" vid="16" parent="-1" rk="1" sh-0="2"/>
  <Value flg="400" vid="17" parent="16" rk="1" sh-0="2"/>
  <Value flg="400" vid="18" parent="-1" rk="0"/>
  <Value flg="400" vid="19" parent="-1" rk="1" sh-0="0"/>
  <Value flg="400" vid="20" parent="-1" rk="0"/>
  <Value flg="400" vid="21" parent="-1" rk="1" sh-0="2"/>
  <Value flg="400" vid="22" parent="-1" rk="0"/>
  <Value flg="400" vid="23" parent="-1" rk="0"/>
  <Value flg="400" vid="24" parent="25" rk="1" sh-0="4"/>
  <Value flg="400" vid="25" parent="-1" rk="2" sh-0="3" sh-1="3"/>
  <Value flg="400" vid="26" parent="-1" rk="0"/>
  <Value flg="400" vid="27" parent="-1" rk="1" sh-0="4"/>
  <Value flg="400" vid="28" parent="27" rk="1" sh-0="5"/>
  <Value flg="400" vid="29" parent="27" rk="1" sh-0="8"/>
  <Value flg="400" vid="30" parent="27" rk="1" sh-0="7"/>
  <Value flg="400" vid="31" parent="27" rk="1" sh-0="0"/>
  <Value flg="400" vid="32" parent="-1" rk="0"/>
  <Value flg="400" vid="33" parent="36" rk="1" sh-0="2"/>
  <Value flg="400" vid="34" parent="36" rk="1" sh-0="2"/>
  <Value flg="400" vid="35" parent="36" rk="1" sh-0="2"/>
  <Value flg="400" vid="36" parent="-1" rk="1" sh-0="3"/>
  <Value flg="400" vid="37" parent="-1" rk="2" sh-0="2" sh-1="3"/>
  <Value flg="400" vid="38" parent="46" rk="1" sh-0="4"/>
  <Value flg="400" vid="39" parent="46" rk="1" sh-0="14"/>
  <Value flg="400" vid="40" parent="46" rk="1" sh-0="6"/>
  <Value flg="400" vid="41" parent="46" rk="1" sh-0="5"/>
  <Value flg="400" vid="42" parent="46" rk="1" sh-0="5"/>
  <Value flg="400" vid="43" parent="46" rk="1" sh-0="8"/>
  <Value flg="400" vid="44" parent="46" rk="1" sh-0="7"/>
  <Value flg="400" vid="45" parent="46" rk="1" sh-0="0"/>
  <Value flg="400" vid="46" parent="-1" rk="2" sh-0="4" sh-1="4"/>
  <Value flg="400" vid="47" parent="49" rk="2" sh-0="2" sh-1="2"/>
  <Value flg="400" vid="48" parent="49" rk="2" sh-0="2" sh-1="3"/>
  <Value flg="400" vid="49" parent="-1" rk="1" sh-0="2"/>
  <Value flg="400" vid="50" parent="-1" rk="0"/>
  <Value flg="400" vid="51" parent="-1" rk="2" sh-0="3" sh-1="3"/>
  <Value flg="400" vid="52" parent="-1" rk="0"/>
  <Value flg="400" vid="53" parent="-1" rk="2" sh-0="3" sh-1="4"/>
  <Value flg="400" vid="54" parent="-1" rk="1" sh-0="2"/>
  <Value flg="400" vid="55" parent="-1" rk="1" sh-0="2"/>
  <Value flg="400" vid="56" parent="55" rk="2" sh-0="2" sh-1="3"/>
  <Value flg="400" vid="57" parent="55" rk="2" sh-0="2" sh-1="2"/>
  <Value flg="400" vid="58" parent="-1" rk="0"/>
  <Value flg="400" vid="59" parent="-1" rk="0"/>
  <Value flg="400" vid="60" parent="-1" rk="0"/>
  <Value flg="400" vid="61" parent="-1" rk="0"/>
  <Value flg="400" vid="62" parent="-1" rk="0"/>
  <Value flg="400" vid="63" parent="-1" rk="0"/>
  <Value flg="400" vid="64" parent="-1" rk="0"/>
  <Value flg="400" vid="65" parent="-1" rk="1" sh-0="3"/>
  <Value flg="400" vid="66" parent="-1" rk="0"/>
  <Value flg="400" vid="67" parent="-1" rk="0"/>
  <Value flg="400" vid="68" parent="-1" rk="0"/>
  <Value flg="400" vid="69" parent="-1" rk="1" sh-0="256"/>
  <Value flg="400" vid="70" parent="-1" rk="1" sh-0="4"/>
  <Value flg="400" vid="71" parent="-1" rk="1" sh-0="21"/>
  <Ravel vid="0" cells="²HEME⁰"/>
  <Ravel vid="1" cells="²HERYOU⁰"/>
  <Ravel vid="2" cells="⁶1⁶0"/>
  <Ravel vid="3" cells="³2³2"/>
  <Ravel vid="4" cells="³-4"/>
  <Ravel vid="5" cells="³2204737534984311008"/>
  <Ravel vid="6" cells="³80"/>
  <Ravel vid="7" cells="³0"/>
  <Ravel vid="8" cells="² ⁰"/>
  <Ravel vid="9" cells="³10"/>
  <Ravel vid="10" cells="² ⁰"/>
  <Ravel vid="11" cells="³1"/>
  <Ravel vid="12" cells="².,⁰¹22C6²0_⁰¹AF"/>
  <Ravel vid="13" cells="⁴1e-13"/>
  <Ravel vid="14" cells="³0"/>
  <Ravel vid="15" cells="² ⁰"/>
  <Ravel vid="16" cells="⁶17²f⁰"/>
  <Ravel vid="17" cells="¹2190¹2192"/>
  <Ravel vid="18" cells="³0"/>
  <Ravel vid="19" cells="² ⁰"/>
  <Ravel vid="20" cells="²f⁰"/>
  <Ravel vid="21" cells="¹2190¹2192"/>
  <Ravel vid="22" cells="²l⁰"/>
  <Ravel vid="23" cells="³0"/>
  <Ravel vid="24" cells="²NONE⁰"/>
  <Ravel vid="25" cells="³801³97³202³3³98³999³11³1089⁶24"/>
  <Ravel vid="26" cells="³1"/>
  <Ravel vid="27" cells="⁶31⁶30⁶29⁶28"/>
  <Ravel vid="28" cells="²MARCH⁰"/>
  <Ravel vid="29" cells="²FEBRUARY⁰"/>
  <Ravel vid="30" cells="²JANUARY⁰"/>
  <Ravel vid="31" cells="² ⁰"/>
  <Ravel vid="32" cells="³0"/>
  <Ravel vid="33" cells="³5³6"/>
  <Ravel vid="34" cells="³3³4"/>
  <Ravel vid="35" cells="³1³2"/>
  <Ravel vid="36" cells="⁶35⁶34⁶33"/>
  <Ravel vid="37" cells="³1³2³3³4³5³6"/>
  <Ravel vid="38" cells="²NONE⁰"/>
  <Ravel vid="39" cells="²VAN DER MUELEN⁰"/>
  <Ravel vid="40" cells="²MCGREW⁰"/>
  <Ravel vid="41" cells="²HIGGS⁰"/>
  <Ravel vid="42" cells="²MARCH⁰"/>
  <Ravel vid="43" cells="²FEBRUARY⁰"/>
  <Ravel vid="44" cells="²JANUARY⁰"/>
  <Ravel vid="45" cells="² ⁰"/>
  <Ravel vid="46" cells="⁶45⁶44⁶43⁶42⁶41³801³97³202⁶40³3³98³999⁶39³11
    ³1089⁶38"/>
  <Ravel vid="47" cells="²HEME⁰"/>
  <Ravel vid="48" cells="²HERYOU⁰"/>
  <Ravel vid="49" cells="⁶48⁶47"/>
  <Ravel vid="50" cells="³0"/>
  <Ravel vid="51" cells="³100³2³3³4³200³6³7³8³300"/>
  <Ravel vid="52" cells="³4"/>
  <Ravel vid="53" cells="³10³8³7³7³6³13²K⁰³16³20³12³21³24"/>
  <Ravel vid="54" cells="³2³2"/>
  <Ravel vid="55" cells="⁶56⁶57"/>
  <Ravel vid="56" cells="²HERYOU⁰"/>
  <Ravel vid="57" cells="²HEME⁰"/>
  <Ravel vid="58" cells="³0"/>
  <Ravel vid="59" cells="³0"/>
  <Ravel vid="60" cells="³0"/>
  <Ravel vid="61" cells="³0"/>
  <Ravel vid="62" cells="³0"/>
  <Ravel vid="63" cells="³1"/>
  <Ravel vid="64" cells="³0"/>
  <Ravel vid="65" cells="¹8¹D¹A
    "/>
  <Ravel vid="66" cells="³0"/>
  <Ravel vid="67" cells="³0"/>
  <Ravel vid="68" cells="³0"/>
  <Ravel vid="69" cells="¹0¹1¹2¹3¹4¹5¹6¹7¹8¹9¹A
    ¹B¹C¹D¹E¹F¹10¹11¹12¹13¹14¹15¹16¹17¹18¹19¹1A¹1B¹1C¹1D¹1E¹1F² !⁰¹22²#$⁰
    ²%⁰¹26²'()*+,-./0123456789:;⁰¹3C²=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_⁰
    ²`abcdefghijklmnopqrstuvwxyz{|}~⁰¹7F¹A5¹20AC¹21C4¹2227¹223C¹226C
    ¹22C6¹22F8¹2338¹233A¹233C¹233E¹2341¹A1¹2363¹2345¹2395¹235E¹2339¹2346
    ¹2364¹2347¹2348¹234A¹22A4¹3BB¹234D¹234F¹A3¹22A5¹2376¹2336¹2350¹2351
    ¹3C7¹2262¹2356¹2357¹2358¹235A¹235B¹2308¹235C¹2362¹222A¹2368¹2355
    ¹234E¹236C¹236A¹2223¹2502¹2524¹235F¹2206¹2207¹2192¹2563¹2551¹2557
    ¹255D¹2190¹230A¹2510¹2514¹2534¹252C¹251C¹2500¹253C¹2191¹2193¹2554
    ¹255A¹2569¹2566¹2560¹2550¹256C¹2261¹2378¹2377¹2235¹2337¹2342¹233B
    ¹22A2¹22A3¹25CA¹2518¹250C¹2588¹2584¹258C¹2590¹2580¹237A¹2379¹2282
    ¹2283¹235D¹2372¹2374¹2371¹233D¹2296¹25CB¹2228¹2373¹2349¹2208¹2229
    ¹233F¹2340¹2265¹2264¹2260¹D7¹F7¹2359¹2218¹2375¹236B¹234B¹2352¹AF¹A8
    ¹A0"/>
  <Ravel vid="70" cells="³-1³0³0³0"/>
  <Ravel vid="71" cells="²SystemVariable.cc:692⁰"/>
  <SymbolTable size="44">
    <Symbol name="A" stack-size="1">
      <Variable vid="53"/>
    </Symbol>

    <Symbol name="AND" stack-size="1">
      <Function creation-time="1414631025424389" exec-properties="0,0,0,0">
        <UCS uni="²z⁰¹2190²(f AND g) r⁰¹A
          ¹235D²From Intro to APL p72⁰¹A
          ²z⁰¹2190²(f r)(g r)⁰¹A
          "/>
      </Function>
    </Symbol>

    <Symbol name="ARGUMENT" stack-size="1">
      <unused-name/>
    </Symbol>

    <Symbol name="B" stack-size="1">
      <unused-name/>
    </Symbol>

    <Symbol name="DISPLAY" stack-size="1">
      <Function creation-time="1414459919917015" exec-properties="0,0,0,0">
        <UCS uni="²Z⁰¹2190²DISPLAY a⁰¹A
          ²Z⁰¹2190²4 ⁰¹2395²CR a⁰¹A
          "/>
      </Function>
    </Symbol>

    <Symbol name="DYNADIC" stack-size="1">
      <unused-name/>
    </Symbol>

    <Symbol name="FUNCTION" stack-size="1">
      <unused-name/>
    </Symbol>

    <Symbol name="G" stack-size="1">
      <unused-name/>
    </Symbol>

    <Symbol name="M" stack-size="1">
      <Variable vid="51"/>
    </Symbol>

    <Symbol name="MONADIC" stack-size="1">
      <unused-name/>
    </Symbol>

    <Symbol name="N" stack-size="1">
      <Variable vid="50"/>
    </Symbol>

    <Symbol name="PLUS" stack-size="1">
      <Function creation-time="1414547572908944" exec-properties="0,0,0,0">
        <UCS uni="²z⁰¹2190²a PLUS b⁰¹A
          ²z⁰¹2190²a+b⁰¹A
          "/>
      </Function>
    </Symbol>

    <Symbol name="REDUCTION" stack-size="1">
      <Function creation-time="1414547466348455" exec-properties="0,0,0,0">
        <UCS uni="²RESULT⁰¹2190²(FUNCTION REDUCTION) ARGUMENT⁰¹A
          ²RESULT⁰¹2190²FUNCTION/ARGUMENT⁰¹A
          "/>
      </Function>
    </Symbol>

    <Symbol name="RESULT" stack-size="1">
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