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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 538 | . 2 ⊢ (𝜓 ↔ (𝜓 ∧ 𝜑)) |
| 3 | 2 | biancomi 467 | 1 ⊢ (𝜓 ↔ (𝜑 ∧ 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 209 ∧ wa 400 |
| 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 df-an 401 |
| This theorem is referenced by: mpbiran 721 cases 1058 truan 1581 2sb5rf 2504 euae 2687 rexv 3482 reuv 3483 rmov 3484 rabab 3485 euxfrw 3684 euxfr 3686 euind 3687 dfdif3OLD 4073 ddif 4095 nssinpss 4220 nsspssun 4221 notabw 4266 vss 4365 reuprg0 4668 reuprg 4669 difsnpss 4775 sspr 4800 sstp 4801 disjprg 5105 mptv 5217 reusv2lem5 5373 oteqex2 5482 dfid4 5557 intirr 6118 xpcan 6174 resssxp 6271 fvopab6 7024 fnressn 7155 riotav 7372 mpov 7522 sorpss 7725 opabn1stprc 8051 fparlem2 8104 fnsuppres 8183 brtpos0 8225 naddrid 8666 sup0riota 9422 genpass 10989 nnwos 12934 hashbclem 14485 ccatlcan 14751 clim0 15553 gcd0id 16572 isdomn3 20813 pjfval2 21859 mat1dimbas 22629 pmatcollpw2lem 22934 isbasis3g 23106 opnssneib 23272 ssidcn 23412 qtopcld 23870 mdegleb 26221 vieta1 26473 lgsne0 27499 axpasch 29291 0wlk 30467 0clwlk 30481 shlesb1i 31738 chnlei 31837 pjneli 32075 cvexchlem 32720 dmdbr5ati 32774 elimifd 32889 fzo0opth 33148 1arithidom 33827 lmxrge0 34342 cntnevol 34618 bnj110 35246 vonf1wev 35592 vonf1owevOLD 35594 goeleq12bg 35841 fmlafvel 35877 elpotr 36271 dfbigcup2 36389 mh-regprimbi 37056 bj-alnnf 37362 bj-rexvw 37515 bj-rababw 37516 bj-brab2a1 37793 finxpreclem4 38040 wl-cases2-dnf 38167 wl-euae 38172 wl-dfclab 38240 cnambfre 38319 triantru3 38885 lub0N 39963 glb0N 39967 cvlsupr3 40118 ifpdfor2 44187 ifpdfor 44191 ifpim1 44195 ifpid2 44197 ifpim2 44198 ifpid2g 44219 ifpid1g 44220 ifpim23g 44221 ifpim1g 44227 ifpimimb 44230 rp-isfinite6 44244 rababg 44300 relnonrel 44313 dffrege115 44704 chnsubseqwl 47595 funressnfv 47780 dfnelbr2 48010 edgusgrclnbfin 48607 |
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