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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 2758 | . 2 ⊢ (⊤ → Ⅎ𝑥 𝐴 = 𝐵) |
6 | 5 | trud 1484 | 1 ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1475 ⊤wtru 1476 Ⅎwnf 1699 Ⅎwnfc 2738 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-cleq 2603 df-nfc 2740 |
This theorem is referenced by: nfeq1 2764 nfeq2 2766 nfne 2882 raleqf 3111 rexeqf 3112 reueq1f 3113 rmoeq1f 3114 rabeqf 3165 csbhypf 3518 sbceqg 3936 nffn 5901 nffo 6027 fvmptdf 6204 mpteqb 6207 fvmptf 6209 eqfnfv2f 6223 dff13f 6417 ovmpt2s 6682 ov2gf 6683 ovmpt2dxf 6684 ovmpt2df 6690 eqerlem 7663 seqof2 12721 sumeq2ii 14271 sumss 14302 fsumadd 14317 fsummulc2 14358 fsumrelem 14380 prodeq1f 14477 prodeq2ii 14482 fprodmul 14529 fproddiv 14530 fprodle 14566 txcnp 21233 ptcnplem 21234 cnmpt11 21276 cnmpt21 21284 cnmptcom 21291 mbfeqalem 23215 mbflim 23241 itgeq1f 23344 itgeqa 23386 dvmptfsum 23542 ulmss 23955 leibpi 24469 o1cxp 24501 lgseisenlem2 24901 fmptcof2 28839 aciunf1lem 28844 sigapildsys 29552 bnj1316 30145 bnj1446 30367 bnj1447 30368 bnj1448 30369 bnj1519 30387 bnj1520 30388 bnj1529 30392 subtr 31478 subtr2 31479 bj-sbeqALT 32087 poimirlem25 32604 iuneq2f 33133 mpt2bi123f 33141 mptbi12f 33145 dvdsrabdioph 36392 fphpd 36398 fvelrnbf 38200 refsum2cnlem1 38219 dffo3f 38359 elrnmptf 38362 disjrnmpt2 38370 disjinfi 38375 choicefi 38387 axccdom 38411 fsumf1of 38641 fmuldfeq 38650 mccl 38665 climmulf 38671 climexp 38672 climsuse 38675 climrecf 38676 climaddf 38682 mullimc 38683 neglimc 38714 addlimc 38715 0ellimcdiv 38716 climeldmeqmpt 38735 climfveqmpt 38738 dvnmptdivc 38828 dvmptfprod 38835 dvnprodlem1 38836 stoweidlem18 38911 stoweidlem31 38924 stoweidlem55 38948 stoweidlem59 38952 sge0f1o 39275 sge0iunmpt 39311 sge0reuz 39340 iundjiun 39353 hoicvrrex 39446 ovnhoilem1 39491 ovnlecvr2 39500 opnvonmbllem1 39522 vonioo 39573 vonicc 39576 sssmf 39625 smflim 39663 ovmpt2rdxf 41910 |
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