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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 1056 truan 1578 2sb5rf 2510 euae 2693 rexv 3490 reuv 3491 rmov 3492 rabab 3493 euxfrw 3693 euxfr 3695 euind 3696 dfdif3OLD 4081 ddif 4103 nssinpss 4228 nsspssun 4229 notabw 4274 vss 4371 reuprg0 4673 reuprg 4674 difsnpss 4779 sspr 4804 sstp 4805 disjprg 5109 mptv 5221 reusv2lem5 5374 oteqex2 5483 dfid4 5558 intirr 6119 xpcan 6175 resssxp 6272 fvopab6 7025 fnressn 7156 riotav 7373 mpov 7523 sorpss 7726 opabn1stprc 8054 fparlem2 8107 fnsuppres 8186 brtpos0 8228 naddrid 8669 sup0riota 9425 genpass 10993 nnwos 12938 hashbclem 14488 ccatlcan 14754 clim0 15556 gcd0id 16576 isdomn3 20798 pjfval2 21827 mat1dimbas 22597 pmatcollpw2lem 22902 isbasis3g 23074 opnssneib 23240 ssidcn 23380 qtopcld 23838 mdegleb 26189 vieta1 26441 lgsne0 27464 axpasch 29231 0wlk 30407 0clwlk 30421 shlesb1i 31678 chnlei 31777 pjneli 32015 cvexchlem 32660 dmdbr5ati 32714 elimifd 32829 fzo0opth 33088 1arithidom 33771 lmxrge0 34286 cntnevol 34562 bnj110 35190 vonf1wev 35490 vonf1owevOLD 35492 goeleq12bg 35739 fmlafvel 35775 elpotr 36169 dfbigcup2 36287 mh-regprimbi 36944 bj-alnnf 37250 bj-rexvw 37403 bj-rababw 37404 bj-brab2a1 37680 finxpreclem4 37927 wl-cases2-dnf 38054 wl-euae 38059 wl-dfclab 38127 cnambfre 38206 triantru3 38774 lub0N 39852 glb0N 39856 cvlsupr3 40007 ifpdfor2 44078 ifpdfor 44082 ifpim1 44086 ifpid2 44088 ifpim2 44089 ifpid2g 44110 ifpid1g 44111 ifpim23g 44112 ifpim1g 44118 ifpimimb 44121 rp-isfinite6 44135 rababg 44191 relnonrel 44204 dffrege115 44595 chnsubseqwl 47486 funressnfv 47668 dfnelbr2 47898 edgusgrclnbfin 48495 |
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