Linear logic has been known since 1987. The first release of Coq (dependent types for functional programming and writing proofs) was in 1989. The HoTTBook came out in 2013. Ada/SPARK 2014 came out the same year as Java 8 did. We also witnessed the Software Foundations series, the CompCert C compiler, the Sel4 microkernel, and the SPARKNaCl cryptographic library. Instead […]