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Mirrors > Home > MPE Home > Th. List > nfeq | Structured version Visualization version GIF version |
Description: Hypothesis builder for equality. (Contributed by NM, 21-Jun-1993.) (Revised by Mario Carneiro, 11-Aug-2016.) (Proof shortened by Wolf Lammen, 16-Nov-2019.) |
Ref | Expression |
---|---|
nfnfc.1 | ⊢ Ⅎ𝑥𝐴 |
nfeq.2 | ⊢ Ⅎ𝑥𝐵 |
Ref | Expression |
---|---|
nfeq | ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfnfc.1 | . . . 4 ⊢ Ⅎ𝑥𝐴 | |
2 | 1 | a1i 11 | . . 3 ⊢ (⊤ → Ⅎ𝑥𝐴) |
3 | nfeq.2 | . . . 4 ⊢ Ⅎ𝑥𝐵 | |
4 | 3 | a1i 11 | . . 3 ⊢ (⊤ → Ⅎ𝑥𝐵) |
5 | 2, 4 | nfeqd 2912 | . 2 ⊢ (⊤ → Ⅎ𝑥 𝐴 = 𝐵) |
6 | 5 | mptru 1548 | 1 ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1541 ⊤wtru 1542 Ⅎwnf 1785 Ⅎwnfc 2882 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-tru 1544 df-ex 1782 df-nf 1786 df-cleq 2723 df-nfc 2884 |
This theorem is referenced by: nfeq1 2917 nfeq2 2919 nfne 3042 raleqf 3326 rexeqf 3327 rmoeq1f 3393 reueq1f 3394 rabeqf 3439 csbhypf 3887 sbceqg 4374 nffn 6606 nffo 6760 fvmptd3f 6968 mpteqb 6972 fvmptf 6974 eqfnfv2f 6991 dff13f 7208 ovmpos 7508 ov2gf 7509 ovmpodxf 7510 ovmpodf 7516 eqerlem 8689 seqof2 13976 sumeq2ii 15589 sumss 15620 fsumadd 15636 fsummulc2 15680 fsumrelem 15703 prodeq1f 15802 prodeq2ii 15807 fprodmul 15854 fproddiv 15855 txcnp 23008 ptcnplem 23009 cnmpt11 23051 cnmpt21 23059 cnmptcom 23066 mbfeqalem1 25042 mbflim 25069 itgeq1f 25173 itgeqa 25215 dvmptfsum 25376 ulmss 25793 leibpi 26329 o1cxp 26361 lgseisenlem2 26761 nosupbnd1 27099 2ndresdju 31632 aciunf1lem 31645 sigapildsys 32850 bnj1316 33521 bnj1446 33746 bnj1447 33747 bnj1448 33748 bnj1519 33766 bnj1520 33767 bnj1529 33771 subtr 34862 subtr2 34863 bj-sbeqALT 35443 poimirlem25 36176 iuneq2f 36688 mpobi123f 36694 mptbi12f 36698 dvdsrabdioph 41191 fphpd 41197 mnringmulrcld 42630 fvelrnbf 43345 refsum2cnlem1 43364 elrnmpt1sf 43530 choicefi 43542 axccdom 43564 uzublem 43785 fsumf1of 43935 fmuldfeq 43944 mccl 43959 climmulf 43965 climexp 43966 climsuse 43969 climrecf 43970 climaddf 43976 mullimc 43977 neglimc 44008 addlimc 44009 0ellimcdiv 44010 climeldmeqmpt 44029 climfveqmpt 44032 climfveqf 44041 climfveqmpt3 44043 climeldmeqf 44044 climeqf 44049 climeldmeqmpt3 44050 limsupubuzlem 44073 limsupequz 44084 dvnmptdivc 44299 dvmptfprod 44306 dvnprodlem1 44307 stoweidlem18 44379 stoweidlem31 44392 stoweidlem55 44416 stoweidlem59 44420 sge0f1o 44743 sge0iunmpt 44779 sge0reuz 44808 iundjiun 44821 hoicvrrex 44917 ovnhoilem1 44962 ovnlecvr2 44971 opnvonmbllem1 44993 vonioo 45043 vonicc 45046 sssmf 45099 smflim 45138 smfpimcclem 45168 smfpimcc 45169 cfsetsnfsetf 45412 ovmpordxf 46534 |
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