P.3
INTRODUCTION
The Buddhist four alternatives are often referred to
by their Sanskrit name catu.sko.ti, and given in the
form that something is, is not, both is and is not,
neither is nor is not, with observation that each of
these terms may be denied. As we proceed we shall
see that this is not the only manner of presenting a
catu.sko.ti. Since so many authorities and scholars
of ancient and modern times have discussed this
cardinal matter. sometimes heatedly, it is not
possible to deal with all the previous studies.
Certain discussions will be considered herein within
the scope of my five sections: I. The four
alternatives and logic, II. The four alternatives in
a disjunctive system, III. The four alternatives
applied to causation, each denied, IV. The four
alternatives applied to existence, each denied, V.
The three kinds of catu.sko.ti, various
considerations.
My findings differ from the Western treatments
that have come to my notice, and the differences
stem from my current preparations for publication of
a translation of a Tibetan work that deals in
several places with the formula.(1) In fact,
Tso^n-kha-pa's separation of the causation and
existence aspects of four alternatives, each denied,
goes back to Atii`sa (11th century), who in his
Bodhimaarga-pradiipa-pa~njikaa-naama presents four
ways of realizing insight (praj~naa), as follows:(2)
1) the principle that denies existence by four
alternatives discussed in section IV herein).
2) the principle called 'diamond grain'
(vajraka.na). He illustrates this in his text by
Naagaarjuna's Madhyamaka-kaarikaa (M.K.), I. 1, with
alternatives applied to causation (discussed in
section III herein).
3) the principle free from singleness and
multiplicity. He appeals to such an author as
`Saantideva (especially his Bodhicaryaavataara,
Chap. IX).
4) the principle of Dependent Origination (pratiit-
yasamutpaada). Here he means, for example, that the
dharmas arise dependently and are void of self-
existence.