Now you are claiming that a couple of Christians discipling another Christian suddenly becomes a church. That is nonsensical on the face of it. "Gathered in my name" refers to Christians gathering for worship. And Paul was not going back to Levitical laws, but even if he did, that would be perfectly valid if God led him to do so under divine inspiration.
When Paul mentioned the Law in 1 Corinthians 14, he meant the Torah, and within the Torah is the book of Genesis. And within Genesis is the injunction to Eve and to all women.
Now notice that Paul was not expressing his opinion here (even though he speaks with apostolic authority he says what God says), by presenting God's truth:
1 TIMOTHY 2
WHAT GOD EXPECTS OF CHRISTIAN WOMEN
9 In like manner also, that women adorn themselves in modest apparel, with shamefacedness and sobriety; not with broided hair, or gold, or pearls, or costly array; 10 But (which becometh women professing godliness) with good works.
WOMEN FORBIDDEN TO PREACH, TEACH, OR ASSUME AUTHORITY WITHIN THE CHURCH (APPICABLE TO ALL CHURCHES)
11 Let the woman learn in silence with all subjection. 12 But I suffer not [ALLOW NOT] a woman to teach, nor to usurp authority over the man, but to be in silence.
Let your women keep silence in the churches: for it is not permitted unto them to speak; but they are commanded to be under obedience, as also saith the law. (1 Cor 14:23)
THE BIBLICAL BASIS FOR THIS INJUNCTION
13 For Adam was first formed, then Eve. 14 And Adam was not deceived, but the woman being deceived was in the transgression. 15 Notwithstanding she shall be saved in childbearing, if they continue in faith and charity and holiness with sobriety. [Note: "saved in childbearing" would mean work out her salvation as a wife and mother within the home, as well as good works outside the home (v 10), since salvation is by grace through faith]
It should be noted that even though the Catholic and Orthodox churches have many errors, they disallowed women from becoming priests based upon these Scriptures. But Paul made it crystal clear in other passages that both elders and deacons were to be men. And it is the responsibility of elders to preach, teach, and have authority and oversight within the churches.