Greek word analysis: anti in verse 15 means equivalence, not replacement

The word anti (in 'hair is given to her anti a covering') can mean 'instead of' (replacement) or 'for/as' (equivalence). Very few scholars now argue for 'instead of.' Paul uses the same construction in Romans 12:17 and 1 Thessalonians 5:15 ('evil for evil') -- both times meaning equivalence, not replacement. Virtually every translation uses 'for' not 'instead of.' Alan Padgett shifted from arguing anti means 'instead of' to agreeing it means equivalence but claiming that still supports his view.