I think this is all valid because Saint Thomas Aquinas is saying that God has to exist sometime in life to make the Earth and nature and so forth. If their were to be a infinity then there would be no first or last causes to have happened. There would be no first or last causes to have happened. I believe the first reasoning that I have listed is invalid because even if Gob didn't …showed first 75 words of 276 total…

…showed last 75 words of 276 total…R2A. If there were no first efficent cause there would be no last or intermediary efficient causes. R2B. In all such series of causes, a first thing causes one or more intermediaries and the intermediaries causes the last thing when taken out of order it is effected. R3. There obviously such causes so we must posit a first efficient cause, which everyone understands to be God. Conculsion: There mut be a first cause.