In Lesson 1, we got familiar with NanoRGL. You may have added new language(s), new lexicon or constructions as an exercise---cool if you did, cool if you didn't. In this directory, we have a fresh copy of NanoRGL that will be used in an application grammar. (How to use a grammar from another directory is a topic for a later lesson.)

So far we've seen a clear division of labour between abstract and concrete vs. resource modules, as well as funs and lins vs opers. This is what you've been taught:

• Open a resource module in a concrete module
• Use the opers from the resource in defining the lins of the concrete

This lesson teaches that you can, in addition,

• Open a concrete module in another concrete module
• Use the lins and opers from the first concrete, in defining the lins of the other concrete.

• Look at ExampleEngNano and just understand that you can do this: open concretes in concretes and define lins with help of other lins.

Optional:

• If you added some new funs/lins or opers to your NanoRGL in lesson 1, you can copy them over to the NanoRGL in this directory and use them in ExampleEngNano.
• If you already know how to do file paths, feel free to skip the copying and just open lesson1/NanoRGLEng in lesson2/ExampleEng.

We're learning how to add file paths in the next lesson.