doc-src/MacroHints
author nipkow
Mon, 11 Jul 1994 17:50:34 +0200
changeset 458 877704b91847
parent 137 ad5414f5540c
permissions -rw-r--r--
type constraints
     1 
     2 Hints
     3 =====
     4 
     5 22-Oct-1993 MMW
     6 20-Nov-1993 MMW
     7 
     8 Some things notable, but not (yet?) covered by the manual.
     9 
    10 
    11 - constants of result type prop should always supply concrete syntax
    12   (elaborate on this in last sect of 'Defining Logics' (?));
    13 
    14 - 'Variable --> Constant' possible during rewriting;
    15 
    16 - 'trivial definitions' via macros (e.g. "x ~= y" == "~ (x = y)");
    17 
    18 - patterns matching any remaining arguments are not possible (i.e. what would
    19   be (f x y . zs) in LISP); e.g. HOL's @ (supposing it implemented via macros
    20   which it is *not*): "@x. P" == "Eps(%x. P)", now the print rule doesn't
    21   match things like Eps(%x. P, a, b, c);
    22 
    23 - alpha: document the precise manner in which bounds are renamed for
    24   printing;
    25 
    26 - parsing: applications like f(x)(y)(z) are not parse-ast-translated into
    27   (f x y z); this may cause some problems, when the notation "f x y z" for
    28   applications will be introduced;
    29