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Theorem axsep 5301
Description: Axiom scheme of separation ax-sep 5302 derived from the axiom scheme of replacement ax-rep 5285. The statement is identical to that of ax-sep 5302, and therefore shows that ax-sep 5302 is redundant when ax-rep 5285 is allowed. See ax-sep 5302 for more information. (Contributed by NM, 11-Sep-2006.) Use ax-sep 5302 instead. (New usage is discouraged.)
Assertion
Ref Expression
axsep 𝑦𝑥(𝑥𝑦 ↔ (𝑥𝑧𝜑))
Distinct variable groups:   𝑥,𝑦,𝑧   𝜑,𝑦,𝑧
Allowed substitution hint:   𝜑(𝑥)

Proof of Theorem axsep
StepHypRef Expression
1 axsepgfromrep 5300 1 𝑦𝑥(𝑥𝑦 ↔ (𝑥𝑧𝜑))
Colors of variables: wff setvar class
Syntax hints:  wb 206  wa 395  wal 1535  wex 1776
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1908  ax-6 1965  ax-7 2005  ax-8 2108  ax-rep 5285
This theorem depends on definitions:  df-bi 207  df-an 396  df-ex 1777  df-mo 2538  df-eu 2567  df-rex 3069
This theorem is referenced by: (None)
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