1 |
(i)
|
Yes.
The result would be:
Gb
"x[Fx®Rxx]
[Fb®Rbb]
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(ii) |
Yes.
There are two permissible results:
Gb
"x[Fx®Rxa]
[Fb®Rba]
and
Gb
"x[Fx®Rxa]
[Fa®Raa]
Of
course, in each case one could go on the apply the rule a second
time.
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|
(iii) |
No.
There are no designators in the branch.
|
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(iv)
|
No.
The rule applies only to formulae beginning with """.
The only rule which can be applied here is the [jÙy] rule.
|
|
(v)
|
No.
The rule applies only to formulae beginning with """.
|
|
(vi)
|
No.
The rule applies only to formulae beginning with """.
|
|
(vii)
|
Yes.
The result would be:
$x[[Fx®Gxa]ÙRaa]
|
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(viii)
|
Yes.
The result would be:
Notice
that [Ga®Fa] cannot be
added to the right hand branch, because it does not contain "a".
(Nor can the rule be applied to ""yGy".)
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