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Theorem ralrot3 2716
Description: Rotate three restricted universal quantifiers. (Contributed by AV, 3-Dec-2021.)
Assertion
Ref Expression
ralrot3 (∀𝑥𝐴𝑦𝐵𝑧𝐶 𝜑 ↔ ∀𝑧𝐶𝑥𝐴𝑦𝐵 𝜑)
Distinct variable groups:   𝑧,𝐴   𝑧,𝐵   𝑥,𝐶   𝑦,𝐶   𝑥,𝑧   𝑦,𝑧
Allowed substitution hints:   𝜑(𝑥,𝑦,𝑧)   𝐴(𝑥,𝑦)   𝐵(𝑥,𝑦)   𝐶(𝑧)

Proof of Theorem ralrot3
StepHypRef Expression
1 ralcom 2714 . . 3 (∀𝑦𝐵𝑧𝐶 𝜑 ↔ ∀𝑧𝐶𝑦𝐵 𝜑)
21ralbii 2556 . 2 (∀𝑥𝐴𝑦𝐵𝑧𝐶 𝜑 ↔ ∀𝑥𝐴𝑧𝐶𝑦𝐵 𝜑)
3 ralcom 2714 . 2 (∀𝑥𝐴𝑧𝐶𝑦𝐵 𝜑 ↔ ∀𝑧𝐶𝑥𝐴𝑦𝐵 𝜑)
42, 3bitri 184 1 (∀𝑥𝐴𝑦𝐵𝑧𝐶 𝜑 ↔ ∀𝑧𝐶𝑥𝐴𝑦𝐵 𝜑)
Colors of variables: wff set class
Syntax hints:  wb 105  wral 2528
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-ext 2220
This theorem depends on definitions:  df-bi 117  df-tru 1405  df-nf 1514  df-sb 1816  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533
This theorem is referenced by:  rmodislmodlem  14662  rmodislmod  14663
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