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Mirrors > Home > MPE Home > Th. List > nfeqf1 | Structured version Unicode version |
Description: An equation between setvar is free of any other setvar. (Contributed by Wolf Lammen, 10-Jun-2019.) |
Ref | Expression |
---|---|
nfeqf1 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfeqf2 1998 |
. 2
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2 | equcom 1734 |
. . 3
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3 | 2 | nfbii 1615 |
. 2
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4 | 1, 3 | sylib 196 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1592 ax-4 1603 ax-5 1671 ax-6 1710 ax-7 1730 ax-10 1777 ax-12 1794 ax-13 1952 |
This theorem depends on definitions: df-bi 185 df-an 371 df-ex 1588 df-nf 1591 |
This theorem is referenced by: dveeq1 2001 sbal2 2180 nfeud2 2275 wl-mo2dnae 28535 |
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