This typefaces were made with one question in mind: by processes of subtraction, how can you alter letterforms to make a new typeface that is more minimal but still retains its readability?
This font was made subtracting an actual subtraction sign from each letter.
In this font I used a similar approach to the one above.
Here I flipped the serif the other way and subtracted it from the letter. I've ended up with some pretty nice terminals.