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| Mirrors > Home > MPE Home > Th. List > biantrur | Structured version Visualization version GIF version | ||
| Description: A wff is equivalent to its conjunction with truth. (Contributed by NM, 3-Aug-1994.) |
| Ref | Expression |
|---|---|
| biantrur.1 | ⊢ 𝜑 |
| Ref | Expression |
|---|---|
| biantrur | ⊢ (𝜓 ↔ (𝜑 ∧ 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | biantrur.1 | . . 3 ⊢ 𝜑 | |
| 2 | 1 | biantru 529 | . 2 ⊢ (𝜓 ↔ (𝜓 ∧ 𝜑)) |
| 3 | 2 | biancomi 462 | 1 ⊢ (𝜓 ↔ (𝜑 ∧ 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 |
| 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 207 df-an 396 |
| This theorem is referenced by: mpbiran 710 cases 1043 truan 1553 2sb5rf 2477 euae 2661 rexv 3458 reuv 3459 rmov 3460 rabab 3461 euxfrw 3668 euxfr 3670 euind 3671 dfdif3OLD 4059 ddif 4082 nssinpss 4208 nsspssun 4209 notabw 4254 vss 4387 reuprg0 4647 reuprg 4648 difsnpss 4751 sspr 4779 sstp 4780 disjprg 5082 mptv 5192 reusv2lem5 5340 oteqex2 5448 dfid4 5521 intirr 6076 xpcan 6135 resssxp 6229 fvopab6 6977 fnressn 7106 riotav 7323 mpov 7473 sorpss 7676 opabn1stprc 8005 fparlem2 8057 fnsuppres 8135 brtpos0 8177 naddrid 8613 sup0riota 9373 genpass 10926 nnwos 12859 hashbclem 14408 ccatlcan 14674 clim0 15462 gcd0id 16482 isdomn3 20686 pjfval2 21702 mat1dimbas 22450 pmatcollpw2lem 22755 isbasis3g 22927 opnssneib 23093 ssidcn 23233 qtopcld 23691 mdegleb 26042 vieta1 26292 lgsne0 27315 axpasch 29027 0wlk 30204 0clwlk 30218 shlesb1i 31475 chnlei 31574 pjneli 31812 cvexchlem 32457 dmdbr5ati 32511 elimifd 32631 fzo0opth 32894 1arithidom 33615 lmxrge0 34115 cntnevol 34391 bnj110 35019 vonf1owev 35309 goeleq12bg 35550 fmlafvel 35586 elpotr 35980 dfbigcup2 36098 mh-regprimbi 36746 bj-alnnf 37053 bj-rexvw 37206 bj-rababw 37207 bj-brab2a1 37482 finxpreclem4 37727 wl-cases2-dnf 37854 wl-euae 37859 wl-dfclab 37927 cnambfre 38006 triantru3 38574 lub0N 39652 glb0N 39656 cvlsupr3 39807 ifpdfor2 43909 ifpdfor 43913 ifpim1 43917 ifpid2 43919 ifpim2 43920 ifpid2g 43941 ifpid1g 43942 ifpim23g 43943 ifpim1g 43949 ifpimimb 43952 rp-isfinite6 43966 rababg 44022 relnonrel 44035 dffrege115 44426 chnsubseqwl 47328 funressnfv 47506 dfnelbr2 47736 edgusgrclnbfin 48333 |
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