Adds time 0 and agent j shortcuts.
Adds a symbol for the inverse operator.
Adds two standard vectors (ones and zeros)
Adds a package (useful for \textprime)
Fixes some sequence commands
Adds inequality and generalized inequality commands
Adds a comment to do an agent indexed tuple
Fixes the definition of the agent-indexed tuple
Adds some commands for sequences
Deletes .gitignore
Adds LICENSE and README.md files