2 truths and a lie

pure obligations

• demandable at once

• not subject to a future event

• time-bound

obligations that are demandable at once

• obligations with suspensive condition

• obligations with resolutory condition

• pure obligations

valid obligations

• obligation with a condition dependent upon chance

• obligation with a condition dependent on the debtor

• obligation with a condition dependent on a 3rd person

condition

• known past

• future

• certain

obligations with a period

• courts may fix the period if it can be inferred that a period was intended

• courts may fix if the period is left with the sole will of he debtor

• court-fixed period can be changed

impossible conditions

• physical

• legal

• social

suspensive condition

• subsequent

• precedent

• antecedent

classification of conditions according to effect

• resolutory

• obligatory

• suspensive