needs some help im not sure how to translate this.

2) For each of these collections of premises, prove the stated conclusion. Be sure to list the rules of inference you used. You may have to be a bit creative. (a) Conclusion: I took Thursday off. The premises are: (i) If I take the day off, it either rains or snows. (ii) If I did not take Tuesday off, then I took Thursday off. (iii) It was sunny on Tuesday