Purpose: For explaning the meaning of both 2 symbols
1) For the first symbol '→', it is mathematically speaking an implication operator.
Statement A → Statement B means (A/B could be a statement like (Posting DATE < current date)
- IF A is true and B is true then the result is true
- IF A is false and B is false then the result is true
- IF A is true and B is false then the result is false
- IF A is false and B is true then the result is true
2) For the second symbol '↔', it is mathematically speaking an equivalence
- IF A is true and B is true then the result is true
- IF A is false and B is false then the result is true
- IF A is true and B is false then the result is false
- IF A is false and B is true then the result is false