Several articles say that a transaction can be canceled or replaced with the same nonce and higher gas price.
Then does this indicate that the same address can NOT send two transactions at the same time?
As the nonce is the number of transactions sent from a given address, may I just increase the number of nonce when sending the second transaction?
However I don't think it is possible to know which transaction will be mined firstly, so it confuses me that I can not determine which transaction should be given a higher nonce.
Please correct me if anything is wrong.