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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 537 | . 2 ⊢ (𝜓 ↔ (𝜓 ∧ 𝜑)) |
| 3 | 2 | biancomi 466 | 1 ⊢ (𝜓 ↔ (𝜑 ∧ 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 208 ∧ wa 399 |
| 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 209 df-an 400 |
| This theorem is referenced by: mpbiran 719 cases 1054 truan 1571 2sb5rf 2503 euae 2686 rexv 3481 reuv 3482 rmov 3483 rabab 3484 euxfrw 3684 euxfr 3686 euind 3687 dfdif3OLD 4072 ddif 4094 nssinpss 4219 nsspssun 4220 notabw 4265 vss 4400 reuprg0 4661 reuprg 4662 difsnpss 4767 sspr 4793 sstp 4794 disjprg 5096 mptv 5206 reusv2lem5 5359 oteqex2 5468 dfid4 5543 intirr 6105 xpcan 6162 resssxp 6257 fvopab6 7010 fnressn 7141 riotav 7358 mpov 7508 sorpss 7711 opabn1stprc 8039 fparlem2 8092 fnsuppres 8171 brtpos0 8213 naddrid 8654 sup0riota 9412 genpass 10967 nnwos 12916 hashbclem 14465 ccatlcan 14731 clim0 15533 gcd0id 16553 isdomn3 20765 pjfval2 21761 mat1dimbas 22532 pmatcollpw2lem 22837 isbasis3g 23009 opnssneib 23175 ssidcn 23315 qtopcld 23773 mdegleb 26124 vieta1 26376 lgsne0 27399 axpasch 29142 0wlk 30318 0clwlk 30332 shlesb1i 31589 chnlei 31688 pjneli 31926 cvexchlem 32571 dmdbr5ati 32625 elimifd 32742 fzo0opth 33005 1arithidom 33733 lmxrge0 34249 cntnevol 34525 bnj110 35153 vonf1wev 35451 vonf1owevOLD 35453 goeleq12bg 35699 fmlafvel 35735 elpotr 36129 dfbigcup2 36247 mh-regprimbi 36905 bj-alnnf 37212 bj-rexvw 37365 bj-rababw 37366 bj-brab2a1 37641 finxpreclem4 37888 wl-cases2-dnf 38015 wl-euae 38020 wl-dfclab 38088 cnambfre 38167 triantru3 38735 lub0N 39813 glb0N 39817 cvlsupr3 39968 ifpdfor2 44037 ifpdfor 44041 ifpim1 44045 ifpid2 44047 ifpim2 44048 ifpid2g 44069 ifpid1g 44070 ifpim23g 44071 ifpim1g 44077 ifpimimb 44080 rp-isfinite6 44094 rababg 44150 relnonrel 44163 dffrege115 44554 chnsubseqwl 47455 funressnfv 47637 dfnelbr2 47867 edgusgrclnbfin 48464 |
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