Name: Anonymous 2012-10-27 3:35
The J programming language used to have many more trains and the 3 operators Lev, Dex, and Identity, which were the higher-order analogues of Left, Right, and Same. These were removed in 2002, but they apparently allowed any verb, adverb, or conjunction to be expressed tacitly (without variables). There's still a copy of J 4.06 on the internet which has these additional operators. This version lacks the N0 V1 V2 train, which was added later.
https://student.brighton.ac.uk/burks/software/langs/j406a.exe
http://www.cs.trinity.edu/About/The_Courses/cs2322/jdoc/dict/dictf.htm
http://www.cs.trinity.edu/About/The_Courses/cs2322/jdoc/dict/d501.htm
http://www.jsoftware.com/help/release/noncpat.htm
http://www.jsoftware.com/help/release/nvv.htm
https://student.brighton.ac.uk/burks/software/langs/j406a.exe
http://www.cs.trinity.edu/About/The_Courses/cs2322/jdoc/dict/dictf.htm
http://www.cs.trinity.edu/About/The_Courses/cs2322/jdoc/dict/d501.htm
http://www.jsoftware.com/help/release/noncpat.htm
http://www.jsoftware.com/help/release/nvv.htm