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| Mirrors > Home > MPE Home > Th. List > nfcvd | Structured version Visualization version GIF version | ||
| Description: If 𝑥 is disjoint from 𝐴, then 𝑥 is not free in 𝐴. (Contributed by Mario Carneiro, 7-Oct-2016.) |
| Ref | Expression |
|---|---|
| nfcvd | ⊢ (𝜑 → Ⅎ𝑥𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfcv 2926 | . 2 ⊢ Ⅎ𝑥𝐴 | |
| 2 | 1 | a1i 11 | 1 ⊢ (𝜑 → Ⅎ𝑥𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 Ⅎwnfc 2911 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-5 1945 |
| This proof depends on definitions: df-bi 210 df-ex 1813 df-nf 1817 df-nfc 2913 |
| This theorem is used by: nfeld 2937 ralcom2 3366 cbvexeqsetf 3469 sbcralt 3823 sbcrext 3824 csbie2t 3889 sbcco3gw 4386 sbcco3g 4391 csbco3g 4392 dfnfc2 4892 eusvnfb 5360 eusv2i 5361 dfid3 5554 iota2d 6548 iota2 6549 fmptcof 7158 nfriotadw 7411 riotaeqimp 7429 riota5f 7431 riota5 7432 oprabid 7478 opiota 8098 fmpoco 8135 nfttrcld 9741 axrepndlem1 10707 axrepndlem2 10708 axunnd 10711 axpowndlem2 10713 axpowndlem3 10714 axpowndlem4 10715 axpownd 10716 axregndlem2 10718 axinfndlem1 10720 axinfnd 10721 axacndlem4 10725 axacndlem5 10726 axacnd 10727 nfnegd 11582 prodsn 16161 fprodeq0g 16193 bpolylem 16246 pcmpt 17102 nfchnd 18817 chfacfpmmulfsupp 23214 elmptrab 24179 dvfsumrlim3 26386 itgsubstlem 26401 itgsubst 26402 ifeqeqx 33213 disjunsn 33263 axsepg2 35921 axnulg 35926 axpowg2 35928 axpowg3 35929 bj-elgab 38043 bj-gabima 38044 wl-issetft 38719 unirep 38853 riotasv2d 40217 cdleme31so 41639 cdleme31se 41642 cdleme31sc 41644 cdleme31sde 41645 cdleme31sn2 41649 cdlemeg47rv2 41770 cdlemk41 42180 mapdheq 42988 hdmap1eq 43061 hdmapval2lem 43091 monotuz 44152 oddcomabszz 44155 mnringvald 45414 nfxnegd 46666 fprodsplit1 46820 dvnmul 47168 sge0sn 47604 hoidmvlelem3 47822 |
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