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shorten proofs, remove dependencies on axioms #3219

Merged
merged 11 commits into from
May 31, 2023
Merged

shorten proofs, remove dependencies on axioms #3219

merged 11 commits into from
May 31, 2023

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wlammen
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@wlammen wlammen commented May 30, 2023 •
edited

  1. shorten proofs, and remove dependencies on axioms in some proofs related to redefine df-ral and friends #3198 .
  2. prove equsb1v without ax-5, ax-7 and ax-12
  3. remove an outdated OLD theorem

@icecream17
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icecream17 commented May 30, 2023 •
edited

shorter proof of equsb1v by using eximii instead of exbii mpbi:

( weq wsb wi wa wex id ax6ev ancli eximii df-sb mpbir2an )
ABCZABDNNENNFZAGNHZNOAABINNPJKNABLM

@wlammen wlammen mentioned this pull request May 31, 2023
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wlammen commented May 31, 2023

Shorter proof is applied.

@wlammen wlammen merged commit 343823d into metamath:develop May 31, 2023
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@tirix tirix tirix approved these changes

@icecream17 icecream17 icecream17 approved these changes

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@wlammen @icecream17 @tirix