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Mirrors > Home > MPE Home > Th. List > biidd | Structured version Visualization version GIF version |
Description: Principle of identity with antecedent. (Contributed by NM, 25-Nov-1995.) |
Ref | Expression |
---|---|
biidd | ⊢ (𝜑 → (𝜓 ↔ 𝜓)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | biid 264 | . 2 ⊢ (𝜓 ↔ 𝜓) | |
2 | 1 | a1i 11 | 1 ⊢ (𝜑 → (𝜓 ↔ 𝜓)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 210 |
This theorem is referenced by: ifpbi23d 1082 3anbi12d 1439 3anbi13d 1440 3anbi23d 1441 3anbi1d 1442 3anbi2d 1443 3anbi3d 1444 nfald2 2444 exdistrf 2446 sb6x 2463 axc16gALT 2493 raleq 3309 rexeq 3310 ralxpxfr2d 3543 rr19.3v 3566 rr19.28v 3567 rabtru 3588 moeq3 3614 euxfr2w 3622 euxfr2 3624 reuxfrd 3650 dfif3 4439 sseliALT 5187 copsexgw 5358 copsexg 5359 soeq1 5474 soinxp 5615 idrefALT 5958 ordtri3or 6223 nfriotadw 7156 oprabidw 7222 ov6g 7350 ovg 7351 sorpssi 7495 dfxp3 7809 fsplit 7863 aceq1 9696 aceq2 9698 axpowndlem4 10179 axpownd 10180 ltsopr 10611 creur 11789 creui 11790 o1fsum 15340 sumodd 15912 sadfval 15974 sadcp1 15977 pceu 16362 vdwlem12 16508 sgrp2rid2ex 18308 gsumval3eu 19243 lss1d 19954 nrmr0reg 22600 stdbdxmet 23367 xrsxmet 23660 cmetcaulem 24139 bcth3 24182 iundisj2 24400 ulmdvlem3 25248 ulmdv 25249 dchrvmasumlem2 26333 colrot1 26604 lnrot1 26668 lnrot2 26669 wlkson 27698 trlsfval 27737 pthsfval 27762 spthsfval 27763 clwlks 27813 crcts 27829 cycls 27830 3cyclfrgrrn1 28322 frgrwopreg 28360 reuxfrdf 30512 iundisj2f 30602 iundisj2fi 30792 ordtprsuni 31537 pmeasmono 31957 erdszelem9 32828 satfv1fvfmla1 33052 xpord3ind 33480 opnrebl2 34196 wl-ifpimpr 35323 wl-df-3xor 35325 wl-ax11-lem9 35430 ax12fromc15 36605 axc16g-o 36634 ax12indalem 36645 ax12inda2ALT 36646 dihopelvalcpre 38948 lpolconN 39187 dvrelog2b 39756 sticksstones11 39781 fsuppind 39930 zindbi 40412 cnvtrucl0 40849 ismnushort 41533 e2ebind 41797 uunT1 42014 ovnval2 43701 ovnval2b 43708 hoiqssbl 43781 6gbe 44839 8gbe 44841 |
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