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| Mirrors > Home > MPE Home > Th. List > Mathboxes > mthmb | Structured version Visualization version GIF version | ||
| Description: If two statements have the same reduct then one is a theorem iff the other is. (Contributed by Mario Carneiro, 18-Jul-2016.) |
| Ref | Expression |
|---|---|
| mthmb.r | ⊢ 𝑅 = (mStRed‘𝑇) |
| mthmb.u | ⊢ 𝑈 = (mThm‘𝑇) |
| Ref | Expression |
|---|---|
| mthmb | ⊢ ((𝑅‘𝑋) = (𝑅‘𝑌) → (𝑋 ∈ 𝑈 ↔ 𝑌 ∈ 𝑈)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mthmb.r | . . 3 ⊢ 𝑅 = (mStRed‘𝑇) | |
| 2 | mthmb.u | . . 3 ⊢ 𝑈 = (mThm‘𝑇) | |
| 3 | 1, 2 | mthmblem 35778 | . 2 ⊢ ((𝑅‘𝑋) = (𝑅‘𝑌) → (𝑋 ∈ 𝑈 → 𝑌 ∈ 𝑈)) |
| 4 | 1, 2 | mthmblem 35778 | . . 3 ⊢ ((𝑅‘𝑌) = (𝑅‘𝑋) → (𝑌 ∈ 𝑈 → 𝑋 ∈ 𝑈)) |
| 5 | 4 | eqcoms 2745 | . 2 ⊢ ((𝑅‘𝑋) = (𝑅‘𝑌) → (𝑌 ∈ 𝑈 → 𝑋 ∈ 𝑈)) |
| 6 | 3, 5 | impbid 212 | 1 ⊢ ((𝑅‘𝑋) = (𝑅‘𝑌) → (𝑋 ∈ 𝑈 ↔ 𝑌 ∈ 𝑈)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 = wceq 1542 ∈ wcel 2114 ‘cfv 6492 mStRedcmsr 35672 mThmcmthm 35677 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-ot 4577 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5519 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-ov 7363 df-oprab 7364 df-1st 7935 df-2nd 7936 df-mpst 35691 df-msr 35692 df-mpps 35696 df-mthm 35697 |
| This theorem is referenced by: (None) |
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