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Mirrors > Home > ILE Home > Th. List > notbid | Unicode version |
Description: Deduction negating both sides of a logical equivalence. (Contributed by NM, 21-May-1994.) (Revised by Mario Carneiro, 31-Jan-2015.) |
Ref | Expression |
---|---|
notbid.1 |
Ref | Expression |
---|---|
notbid |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | notbid.1 | . . . 4 | |
2 | 1 | biimprd 156 | . . 3 |
3 | 2 | con3d 593 | . 2 |
4 | 1 | biimpd 142 | . . 3 |
5 | 4 | con3d 593 | . 2 |
6 | 3, 5 | impbid 127 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wb 103 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 576 ax-in2 577 |
This theorem depends on definitions: df-bi 115 |
This theorem is referenced by: notbii 626 dcbid 781 con1biidc 804 pm4.54dc 838 xorbi2d 1311 xorbi1d 1312 pm5.18im 1316 pm5.24dc 1329 neeq1 2258 neeq2 2259 necon3abid 2284 neleq1 2343 neleq2 2344 cdeqnot 2803 ru 2814 sbcng 2854 sbcnel12g 2923 sbcne12g 2924 difjust 2974 eldif 2982 difeq2 3084 disjne 3297 ifbi 3369 prel12 3563 nalset 3908 pwnss 3933 poeq1 4054 pocl 4058 swopo 4061 sotritrieq 4080 tz7.2 4109 regexmidlem1 4276 regexmid 4278 nordeq 4287 nlimsucg 4309 nndceq0 4357 nnregexmid 4360 poinxp 4427 posng 4430 intirr 4731 poirr2 4737 cnvpom 4880 fndmdif 5293 isopolem 5481 poxp 5873 nnmword 6114 brdifun 6156 swoer 6157 2dom 6308 php5 6344 php5dom 6349 findcard2s 6374 supeq3 6403 supeq123d 6404 supmoti 6406 eqsupti 6409 supubti 6412 supsnti 6418 isotilem 6419 isoti 6420 supisolem 6421 supisoex 6422 cnvinfex 6431 cnvti 6432 eqinfti 6433 infvalti 6435 pitric 6511 addnidpig 6526 ltsonq 6588 elinp 6664 prltlu 6677 prdisj 6682 ltexprlemdisj 6796 ltposr 6940 aptisr 6955 axpre-ltirr 7048 axpre-apti 7051 xrlenlt 7177 axapti 7183 lttri3 7191 ltne 7196 leadd1 7534 reapti 7679 lemul1 7693 apirr 7705 apti 7722 lediv1 7947 lemuldiv 7959 lerec 7962 le2msq 7979 suprnubex 8031 suprleubex 8032 avgle1 8271 avgle2 8272 znnnlt1 8399 supinfneg 8683 infsupneg 8684 eluzdc 8697 qapne 8724 xrltne 8883 xleneg 8904 nn0disj 9148 elfzonelfzo 9239 fvinim0ffz 9250 ioo0 9268 ico0 9270 ioc0 9271 flqlt 9285 expeq0 9507 abs00 9950 maxleim 10091 maxabslemval 10094 maxleast 10099 minmax 10112 zeo3 10267 odd2np1 10272 mod2eq1n2dvds 10279 ndvdsadd 10331 fldivndvdslt 10335 zsupcllemstep 10341 zsupcllemex 10342 gcdneg 10373 algcvgblem 10431 lcmneg 10456 isprm3 10500 dvdsnprmd 10507 rpexp 10532 pw2dvdslemn 10543 pw2dvdseu 10546 oddpwdclemxy 10547 oddpwdclemdc 10551 oddpwdc 10552 sqpweven 10553 2sqpwodd 10554 sqne2sq 10555 bj-nalset 10686 bj-nnelirr 10748 |
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