Reduce ax-13 usage for ~ bnj* theorems #3895
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avekens
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icecream17
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tirix
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This PR affects only Jonathan Ben-Naim mathbox, specifically:
Add theorem
bnj985v, which is a version of bnj985 with an additional dv condition, not relying on ax-13.Use
bnj985vin the proof of bnj1018 to drop ax-13 (statement and dv conditions of bnj1018 stay the same).Add theorem
bnj1018g, which is a more general version than bnj1018, but requiring ax-13. This should solve the conflict reported in Discourage indirect usage of ax-13? #3879 (comment).Add cross references between
bnj985vand bnj985, and between bnj1018 andbnj1018g.Add $j tags to
bnj985vand bnj1018.Remove ax-13 usage from the remaining ~ bnj* theorems.
This PR drops ax-13 from 32 theorems. Full axiom usage here: 07cb7cc