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| Mirrors > Home > ILE Home > Th. List > nfcri | GIF version | ||
| Description: Consequence of the not-free predicate. (Note that unlike nfcr 2331, this does not require 𝑦 and 𝐴 to be disjoint.) (Contributed by Mario Carneiro, 11-Aug-2016.) | 
| Ref | Expression | 
|---|---|
| nfcri.1 | ⊢ Ⅎ𝑥𝐴 | 
| Ref | Expression | 
|---|---|
| nfcri | ⊢ Ⅎ𝑥 𝑦 ∈ 𝐴 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | nfcri.1 | . . 3 ⊢ Ⅎ𝑥𝐴 | |
| 2 | 1 | nfcrii 2332 | . 2 ⊢ (𝑦 ∈ 𝐴 → ∀𝑥 𝑦 ∈ 𝐴) | 
| 3 | 2 | nfi 1476 | 1 ⊢ Ⅎ𝑥 𝑦 ∈ 𝐴 | 
| Colors of variables: wff set class | 
| Syntax hints: Ⅎwnf 1474 ∈ wcel 2167 Ⅎwnfc 2326 | 
| 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 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 | 
| This theorem depends on definitions: df-bi 117 df-nf 1475 df-sb 1777 df-cleq 2189 df-clel 2192 df-nfc 2328 | 
| This theorem is referenced by: clelsb1f 2343 nfnfc 2346 nfeq 2347 nfel 2348 cleqf 2364 sbabel 2366 r2alf 2514 r2exf 2515 nfrabw 2678 cbvralfw 2719 cbvrexfw 2720 cbvralf 2721 cbvrexf 2722 cbvrab 2761 rmo3f 2961 nfccdeq 2987 sbcabel 3071 cbvcsbw 3088 cbvcsb 3089 cbvralcsf 3147 cbvrexcsf 3148 cbvreucsf 3149 cbvrabcsf 3150 dfss2f 3174 nfdif 3284 nfun 3319 nfin 3369 nfop 3824 nfiunxy 3942 nfiinxy 3943 nfiunya 3944 nfiinya 3945 cbviun 3953 cbviin 3954 iunxsngf 3994 cbvdisj 4020 nfdisjv 4022 disjiun 4028 nfmpt 4125 cbvmptf 4127 nffrfor 4383 onintrab2im 4554 tfis 4619 nfxp 4690 opeliunxp 4718 iunxpf 4814 elrnmpt1 4917 fvmptssdm 5646 nfmpo 5991 cbvmpox 6000 fmpox 6258 nffrec 6454 cc3 7335 nfsum1 11521 nfsum 11522 fsum2dlemstep 11599 fisumcom2 11603 nfcprod1 11719 nfcprod 11720 cbvprod 11723 fprod2dlemstep 11787 fprodcom2fi 11791 ctiunctlemudc 12654 ctiunctlemfo 12656 | 
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