TECH: PROPOSED GRAMMAR CHANGE 39: change BO to BIhE in MEX operators

CHANGE 39

CURRENT LANGUAGE:

A MEX operator can be made high-priority by prefixing it with BO.

PROPOSED CHANGE:

Eliminate this use of BO in favor of a new cmavo "bi'e" of selma'o BIhE.

RATIONALE:

The current use of BO is ambiguous, but this ambiguity is masked from YACC
by the compounder.  Consider the improbable, but grammatical, sentences:

1)	li re su'i jebo pi'i re du li vo
	The number two plus or times two equals the number four.

2)	li re su'i je bopi'i re du li vo
	The number two plus or times two equals the number four.

The parser will always assume Example 1 rather than Example 2, because the
compounder tries to compound the longest possible string.  This particular
example does not amount to any semantic difference, because neither
tight-binding logical connection between operands (as in Example 1) nor
tight-binding operands (as in Example 2) are needed in this sentence;
however, it would be possible to concoct examples where the difference
mattered.

Even if this could be made to work by trickery, the use of BO as a prefix
is highly unlojbanic; it occurs only on MEX operators, and was done there
because a postfix BO would require compounding, and not all MEX operators
can be compounded (some include full bridi).

-- 
John Cowan					cowan@ccil.org
		e'osai ko sarji la lojban.