presence/absence

I'm trying to compare two views, both with the same three fields, where the rows of one view are a subset of the rows of the other.  I want to produce a new view that shows each row in the larger of the two original views, and has a new column that has a value of 1 if the combination of values on that row occurs in the smaller of the original views, and a 0 if it doesn't.

I'm certainly a beginner SQL user, and the solution that occurred to me -- namely a CASE conditional statement to produce the fourth column in the new view-- has not worked, because mentioning the columns of the smaller source view in the CASE statement induces the same behavior as though all the columns in both the smaller and larger source views were mentioned in the SELECT list -- that is, all combinations of the values in the six fields in the larger and smaller source tables are tested by the CASE statement (which is pretty useless).  I only want the particular rows in the larger view to be tested pairwise against those in the smaller.  

This is what I tried, where the larger source view mentioned above is called "SWWA_list", and the smaller view (a subset of the rows of the larger) is "SWWA_t1".  Each of the source views has the same three columns, called point_id, region, and foray.