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Mirrors > Home > MPE Home > Th. List > nfss | Structured version Visualization version Unicode version |
Description: If is not free in and , it is not free in . (Contributed by NM, 27-Dec-1996.) |
Ref | Expression |
---|---|
dfss2f.1 | |
dfss2f.2 |
Ref | Expression |
---|---|
nfss |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfss2f.1 | . . 3 | |
2 | dfss2f.2 | . . 3 | |
3 | 1, 2 | dfss3f 3595 | . 2 |
4 | nfra1 2941 | . 2 | |
5 | 3, 4 | nfxfr 1779 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wnf 1708 wcel 1990 wnfc 2751 wral 2912 wss 3574 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-in 3581 df-ss 3588 |
This theorem is referenced by: ssrexf 3665 nfpw 4172 ssiun2s 4564 triun 4766 iunopeqop 4981 ssopab2b 5002 nffr 5088 nfrel 5204 nffun 5911 nff 6041 fvmptss 6292 ssoprab2b 6712 tfis 7054 ovmptss 7258 nfwrecs 7409 oawordeulem 7634 nnawordex 7717 r1val1 8649 cardaleph 8912 nfsum1 14420 nfsum 14421 nfcprod1 14640 nfcprod 14641 iunconn 21231 ovolfiniun 23269 ovoliunlem3 23272 ovoliun 23273 ovoliun2 23274 ovoliunnul 23275 limciun 23658 ssiun2sf 29378 ssrelf 29425 funimass4f 29437 fsumiunle 29575 prodindf 30085 esumiun 30156 bnj1408 31104 totbndbnd 33588 ss2iundf 37951 iunconnlem2 39171 iinssdf 39328 rnmptssbi 39477 stoweidlem53 40270 stoweidlem57 40274 opnvonmbllem2 40847 smflim 40985 nfsetrecs 42433 setrec2fun 42439 |
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